fix: use exact issue-number boundary in own-branch adoption (#442)

Replace substring issue-marker matching with a numeric word-boundary
regex so issue-42 adoption is not false-blocked by unrelated issue-420
branches. Add regression tests for the #42 vs #420 collision.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

author_mutation_worktree.py

@@ -7,11 +7,8 @@ project's ``branches/`` directory, never from the stable control checkout.
 from __future__ import annotations
 
 import os
-import subprocess
 
 BASE_BRANCHES = frozenset({"master", "main", "dev"})
-ACTIVE_WORKTREE_ENV = "GITEA_ACTIVE_WORKTREE"
-AUTHOR_WORKTREE_ENV = "GITEA_AUTHOR_WORKTREE"
 
 
 def _normalize_path(path: str) -> str:
@@ -51,130 +48,6 @@ def resolve_mutation_workspace(
     return os.path.realpath(project_root)
 
 
-def _realpath_git_common_dir(workspace_path: str, common_dir: str) -> str:
-    """Resolve ``git rev-parse --git-common-dir`` relative to *workspace_path*."""
-    raw = (common_dir or "").strip()
-    if not raw:
-        return raw
-    if os.path.isabs(raw):
-        return os.path.realpath(raw)
-    return os.path.realpath(os.path.join(workspace_path, raw))
-
-
-def resolve_canonical_repo_root(workspace_path: str, fallback_project_root: str) -> str:
-    """Return the stable repository root for *workspace_path* via git metadata (#460)."""
-    path = (workspace_path or "").strip()
-    fallback = os.path.realpath(fallback_project_root)
-    if not path:
-        return fallback
-    try:
-        res = subprocess.run(
-            ["git", "-C", path, "rev-parse", "--git-common-dir"],
-            capture_output=True,
-            text=True,
-            check=True,
-        )
-        common = _realpath_git_common_dir(path, res.stdout)
-    except Exception:
-        return fallback
-    if common.endswith(f"{os.sep}.git"):
-        return os.path.dirname(common)
-    if os.path.basename(common) == ".git":
-        return os.path.dirname(common)
-    return fallback
-
-
-def resolve_author_mutation_context(
-    worktree_path: str | None,
-    process_project_root: str,
-    *,
-    active_worktree_env: str | None = None,
-    author_worktree_env: str | None = None,
-) -> dict:
-    """Shared workspace resolution for runtime_context and mutation guards (#460)."""
-    workspace = resolve_mutation_workspace(
-        worktree_path,
-        process_project_root,
-        active_worktree_env=active_worktree_env,
-        author_worktree_env=author_worktree_env,
-    )
-    process_root = os.path.realpath(process_project_root)
-    # Canonical repository identity comes from the MCP process checkout (#460),
-    # not from the declared task workspace being validated.
-    canonical_root = resolve_canonical_repo_root(process_root, process_root)
-    return {
-        "workspace_path": workspace,
-        "process_project_root": process_root,
-        "canonical_repo_root": canonical_root,
-        "roots_aligned": canonical_root == process_root,
-    }
-
-
-def assess_workspace_repo_membership(
-    *,
-    workspace_path: str,
-    canonical_repo_root: str,
-) -> dict:
-    """Fail closed when *workspace_path* is not a git worktree of *canonical_repo_root*."""
-    workspace = os.path.realpath(workspace_path)
-    root = os.path.realpath(canonical_repo_root)
-    reasons: list[str] = []
-
-    if not os.path.exists(workspace):
-        reasons.append(f"worktree path '{workspace}' does not exist")
-        return _membership_assessment(False, reasons, workspace, root, None)
-
-    if not os.path.isdir(workspace):
-        reasons.append(f"worktree path '{workspace}' is not a directory")
-        return _membership_assessment(False, reasons, workspace, root, None)
-
-    try:
-        res = subprocess.run(
-            ["git", "-C", workspace, "rev-parse", "--git-common-dir"],
-            capture_output=True,
-            text=True,
-            check=True,
-        )
-        common_dir = _realpath_git_common_dir(workspace, res.stdout)
-    except Exception:
-        reasons.append(f"worktree '{workspace}' is not a valid git repository")
-        return _membership_assessment(False, reasons, workspace, root, None)
-
-    expected_dir = os.path.realpath(os.path.join(root, ".git"))
-    if common_dir != expected_dir:
-        reasons.append(
-            f"worktree '{workspace}' does not belong to the target repository '{root}'"
-        )
-    return _membership_assessment(not reasons, reasons, workspace, root, common_dir)
-
-
-def _membership_assessment(
-    proven: bool,
-    reasons: list[str],
-    workspace: str,
-    root: str,
-    common_dir: str | None,
-) -> dict:
-    return {
-        "proven": proven,
-        "block": not proven,
-        "reasons": reasons,
-        "workspace_path": workspace,
-        "canonical_repo_root": root,
-        "git_common_dir": common_dir,
-    }
-
-
-def format_workspace_repo_membership_error(assessment: dict) -> str:
-    workspace = assessment.get("workspace_path") or "(unknown)"
-    root = assessment.get("canonical_repo_root") or "(unknown)"
-    reasons = "; ".join(assessment.get("reasons") or ["unknown repository membership violation"])
-    return (
-        f"Branches-only mutation guard (#274): {reasons} (fail closed). "
-        f"canonical repository root: {root}; workspace: {workspace}."
-    )
-
-
 def assess_author_mutation_worktree(
     *,
     workspace_path: str,

docs/llm-workflow-runbooks.md

@@ -274,24 +274,12 @@ is proven abandoned and the takeover is recorded.
 
 Gitea-Tools lease gates: `gitea_lock_issue` (fail-closed before author
 mutations), `status:in-progress`, and claim comments. `gitea_lock_issue`
-records an `author_issue_work` lease in a keyed lock file under
-`GITEA_ISSUE_LOCK_DIR` (default `~/.cache/gitea-tools/issue-locks`), one file
-per `remote` + `org` + `repo` + `issue_number`. The current MCP session binds
-its active lock through a per-process pointer so concurrent repos/issues never
-share one overwrite-prone slot (#443).
-
-Each lock payload includes issue number, optional PR number, branch, worktree
-path, claimant identity/profile, created timestamp, expiry timestamp, and last
-heartbeat timestamp. An active same-issue/same-operation lease blocks duplicate
-work. An expired lease still blocks takeover until a recovery review records why
-the prior work is abandoned, completed, or unsafe to continue.
-
-**Do not manually seed `/tmp/gitea_issue_lock.json` or any lock file as a normal
-recovery path.** That global slot is deprecated and can clobber unrelated live
-leases (#438). After an MCP restart, call `gitea_lock_issue` again — own-branch
-adoption rebinds the session when the issue's exact branch already exists (#442).
-`gitea_create_pr` resolves the durable keyed lock by session pointer or by
-matching `head` branch without unsafe manual seeding.
+records an `author_issue_work` lease in the issue-lock payload with issue
+number, optional PR number, branch, worktree path, claimant identity/profile,
+created timestamp, expiry timestamp, and last heartbeat timestamp. An active
+same-issue/same-operation lease blocks duplicate work. An expired lease still
+blocks takeover until a recovery review records why the prior work is abandoned,
+completed, or unsafe to continue.
 
 **Issue-lock recovery (#447):** Do not manually seed, restore, or delete
 `/tmp/gitea_issue_lock.json` as a normal recovery path. That file is global

gitea_mcp_server.py

@@ -190,22 +190,14 @@ def _ensure_process_start_porcelain() -> str:
 
 def _resolve_preflight_workspace_path(worktree_path: str | None = None) -> str:
     """Resolve the workspace root inspected by pre-flight guards."""
-    return author_mutation_worktree.resolve_mutation_workspace(
-        worktree_path,
-        PROJECT_ROOT,
-        active_worktree_env=os.environ.get(ACTIVE_WORKTREE_ENV),
-        author_worktree_env=os.environ.get(AUTHOR_WORKTREE_ENV),
-    )
-
-
-def _resolve_author_mutation_context(worktree_path: str | None = None) -> dict:
-    """Canonical workspace + repository root for runtime_context and guards (#460)."""
-    return author_mutation_worktree.resolve_author_mutation_context(
-        worktree_path,
-        PROJECT_ROOT,
-        active_worktree_env=os.environ.get(ACTIVE_WORKTREE_ENV),
-        author_worktree_env=os.environ.get(AUTHOR_WORKTREE_ENV),
-    )
+    path = (worktree_path or "").strip()
+    if not path:
+        path = (os.environ.get(ACTIVE_WORKTREE_ENV) or "").strip()
+    if not path:
+        path = (os.environ.get(AUTHOR_WORKTREE_ENV) or "").strip()
+    if not path:
+        path = PROJECT_ROOT
+    return os.path.realpath(os.path.abspath(path))
 
 
 def _get_git_root(path: str) -> str | None:
@@ -275,31 +267,21 @@ def _format_preflight_files(files: list[str]) -> str:
 
 
 def _preflight_workspace_details(worktree_path: str | None, dirty_files: list[str]) -> dict:
-    ctx = _resolve_author_mutation_context(worktree_path)
-    workspace = ctx["workspace_path"]
+    workspace = _resolve_preflight_workspace_path(worktree_path)
     inspected_root = _get_git_root(workspace)
-    process_root = ctx["process_project_root"]
-    canonical_root = ctx["canonical_repo_root"]
+    control_root = os.path.realpath(PROJECT_ROOT)
     active_root = os.path.realpath(inspected_root or workspace)
-    if active_root == canonical_root:
+    if active_root == control_root:
         dirty_scope = "control checkout"
     else:
         dirty_scope = "active task workspace"
-    details = {
-        "mcp_server_process_root": process_root,
-        "canonical_repository_root": canonical_root,
+    return {
+        "mcp_server_process_root": control_root,
         "active_task_workspace_root": active_root,
         "inspected_git_root": inspected_root,
         "dirty_files": list(dirty_files),
         "dirty_scope": dirty_scope,
-        "workspace_roots_aligned": ctx["roots_aligned"],
     }
-    if not ctx["roots_aligned"]:
-        details["workspace_root_mismatch"] = (
-            "runtime_context and mutation guard use canonical repository root "
-            f"'{canonical_root}' instead of MCP process root '{process_root}'"
-        )
-    return details
 
 
 def _format_preflight_workspace_details(details: dict) -> str:
@@ -420,12 +402,16 @@ def _enforce_branches_only_author_mutation(worktree_path: str | None = None) ->
     """#274: author mutations must run from a branches/ session worktree."""
     if _preflight_resolved_role == "reviewer":
         return
-    ctx = _resolve_author_mutation_context(worktree_path)
-    workspace = ctx["workspace_path"]
+    workspace = author_mutation_worktree.resolve_mutation_workspace(
+        worktree_path,
+        PROJECT_ROOT,
+        active_worktree_env=os.environ.get(ACTIVE_WORKTREE_ENV),
+        author_worktree_env=os.environ.get(AUTHOR_WORKTREE_ENV),
+    )
     git_state = issue_lock_worktree.read_worktree_git_state(workspace)
     assessment = author_mutation_worktree.assess_author_mutation_worktree(
         workspace_path=workspace,
-        project_root=ctx["canonical_repo_root"],
+        project_root=PROJECT_ROOT,
         current_branch=git_state.get("current_branch"),
     )
     if assessment["block"]:
@@ -454,23 +440,43 @@ def verify_preflight_purity(remote: str | None = None, worktree_path: str | None
             "Pre-flight order violation: Task capability (gitea_resolve_task_capability) has not been resolved (fail closed)"
         )
 
-    ctx = _resolve_author_mutation_context(worktree_path)
-    workspace = ctx["workspace_path"]
-    canonical_root = ctx["canonical_repo_root"]
-    process_root = ctx["process_project_root"]
+    workspace = author_mutation_worktree.resolve_mutation_workspace(
+        worktree_path,
+        PROJECT_ROOT,
+        active_worktree_env=os.environ.get(ACTIVE_WORKTREE_ENV),
+        author_worktree_env=os.environ.get(AUTHOR_WORKTREE_ENV),
+    )
     real_workspace = os.path.realpath(workspace)
+    real_root = os.path.realpath(PROJECT_ROOT)
 
-    if real_workspace != process_root:
+    if real_workspace != real_root:
         if not _preflight_in_test_mode():
-            membership = author_mutation_worktree.assess_workspace_repo_membership(
-                workspace_path=workspace,
-                canonical_repo_root=canonical_root,
-            )
-            if membership["block"]:
+            if not os.path.exists(real_workspace):
                 raise RuntimeError(
-                    author_mutation_worktree.format_workspace_repo_membership_error(
-                        membership
+                    f"Branches-only mutation guard (#274): worktree path '{workspace}' does not exist (fail closed)"
+                )
+            if not os.path.isdir(real_workspace):
+                raise RuntimeError(
+                    f"Branches-only mutation guard (#274): worktree path '{workspace}' is not a directory (fail closed)"
+                )
+            try:
+                res = subprocess.run(
+                    ["git", "-C", real_workspace, "rev-parse", "--git-common-dir"],
+                    capture_output=True,
+                    text=True,
+                    check=True,
+                )
+                common_dir = os.path.realpath(res.stdout.strip())
+                expected_dir = os.path.realpath(os.path.join(real_root, ".git"))
+                if common_dir != expected_dir:
+                    raise RuntimeError(
+                        f"Branches-only mutation guard (#274): worktree '{workspace}' does not belong to the target repository '{PROJECT_ROOT}' (fail closed)"
                     )
+            except Exception as e:
+                if isinstance(e, RuntimeError):
+                    raise e
+                raise RuntimeError(
+                    f"Branches-only mutation guard (#274): worktree '{workspace}' is not a valid git repository (fail closed)"
                 )
 
         dirty_files = sorted(_parse_porcelain_entries(_get_workspace_porcelain(workspace)))
@@ -533,12 +539,11 @@ import review_proofs  # noqa: E402
 import agent_temp_artifacts
 import issue_lock_worktree  # noqa: E402
 import issue_lock_provenance  # noqa: E402
-import issue_lock_store  # noqa: E402
-import issue_lock_adoption  # noqa: E402
 import already_landed_reconcile  # noqa: E402
 import author_mutation_worktree  # noqa: E402
 import issue_claim_heartbeat  # noqa: E402
 import issue_work_duplicate_gate  # noqa: E402
+import issue_lock_adoption  # noqa: E402
 import reviewer_pr_lease  # noqa: E402
 import merged_cleanup_reconcile  # noqa: E402
 import reconciler_profile  # noqa: E402
@@ -547,9 +552,8 @@ import review_merge_state_machine  # noqa: E402
 import native_mcp_preference  # noqa: E402
 
 
-# Keyed issue-lock storage (#443): per remote/org/repo/issue files under
-# GITEA_ISSUE_LOCK_DIR, bound to the current MCP session via a per-PID pointer.
-# Legacy global path retained only for test/doc references — do not seed manually.
+# Fail-closed exact-issue-lock file (#204): written by gitea_lock_issue,
+# consumed by gitea_create_pr and scripts/worktree-start.
 ISSUE_LOCK_FILE = "/tmp/gitea_issue_lock.json"
 WORK_LEASE_TTL_HOURS = 4
 AUTHOR_ISSUE_WORK_LEASE = "author_issue_work"
@@ -581,59 +585,15 @@ def _parse_work_lease_timestamp(value: str | None) -> datetime | None:
         return None
 
 
-def _load_existing_issue_lock(
-    *,
-    remote: str | None = None,
-    org: str | None = None,
-    repo: str | None = None,
-    issue_number: int | None = None,
-) -> dict | None:
-    if remote and org and repo and issue_number is not None:
-        return issue_lock_store.load_issue_lock(
-            remote=remote,
-            org=org,
-            repo=repo,
-            issue_number=issue_number,
-        )
-    return issue_lock_store.read_session_issue_lock()
-
-
-def _resolve_issue_lock_for_pr(
-    *,
-    remote: str,
-    org: str,
-    repo: str,
-    head: str,
-) -> dict:
-    lock_data = issue_lock_store.read_session_issue_lock()
-    if not lock_data:
-        lock_data = issue_lock_store.find_lock_for_branch(
-            remote=remote,
-            org=org,
-            repo=repo,
-            branch_name=head,
-        )
-    if not lock_data:
-        raise RuntimeError(
-            "Issue lock is missing (fail closed). Call gitea_lock_issue first."
-        )
-    return lock_data
-
-
-def _save_issue_lock(data: dict) -> str:
-    existing = issue_lock_store.load_issue_lock(
-        remote=str(data.get("remote") or ""),
-        org=str(data.get("org") or ""),
-        repo=str(data.get("repo") or ""),
-        issue_number=int(data.get("issue_number") or 0),
-    )
-    overwrite_block = issue_lock_store.assess_foreign_lock_overwrite(existing, data)
-    if overwrite_block:
-        raise RuntimeError(overwrite_block)
+def _load_existing_issue_lock() -> dict | None:
+    if not os.path.exists(ISSUE_LOCK_FILE):
+        return None
     try:
-        return issue_lock_store.bind_session_lock(data)
-    except Exception as e:
-        raise RuntimeError(f"Could not write issue lock file: {e}") from e
+        with open(ISSUE_LOCK_FILE, "r", encoding="utf-8") as f:
+            data = json.load(f)
+        return data if isinstance(data, dict) else None
+    except Exception:
+        return None
 
 
 def _work_lease_claimant(host: str | None) -> dict:
@@ -1296,9 +1256,8 @@ def gitea_lock_issue(
     resolved_worktree = issue_lock_worktree.resolve_author_worktree_path(
         worktree_path, PROJECT_ROOT
     )
-    h, o, r = _resolve(remote, host, org, repo)
-    active_lease_block = issue_lock_store.assess_same_issue_lease_conflict(
-        _load_existing_issue_lock(remote=remote, org=o, repo=r, issue_number=issue_number),
+    active_lease_block = _active_work_lease_block(
+        _load_existing_issue_lock(),
         issue_number=issue_number,
         branch_name=branch_name,
         worktree_path=resolved_worktree,
@@ -1322,6 +1281,7 @@ def gitea_lock_issue(
             issue_lock_worktree.format_issue_lock_worktree_error(lock_assessment)
         )
 
+    h, o, r = _resolve(remote, host, org, repo)
     auth = _auth(h)
     duplicate_gate = _assess_issue_duplicate_gate(
         issue_number,
@@ -1381,7 +1341,11 @@ def gitea_lock_issue(
         ),
     }
 
-    lock_file_path = _save_issue_lock(data)
+    try:
+        with open(ISSUE_LOCK_FILE, "w", encoding="utf-8") as f:
+            json.dump(data, f)
+    except Exception as e:
+        raise RuntimeError(f"Could not write issue lock file: {e}")
 
     agent_artifacts = agent_temp_artifacts.find_agent_temp_artifacts_from_porcelain(
         git_state.get("porcelain_status") or ""
@@ -1396,16 +1360,16 @@ def gitea_lock_issue(
         "branch_name": branch_name,
         "worktree_path": resolved_worktree,
         "work_lease": work_lease,
-        "lock_file_path": lock_file_path,
     }
     if adoption["adopt"]:
+        # #442: recovery lock over the issue's own already-pushed branch.
         result["adoption"] = issue_lock_adoption.build_adoption_proof(
             issue_number=issue_number,
             branch_name=branch_name,
             assessment=adoption,
             open_pr_checked=True,
             competing_lock_checked=True,
-            lock_file_path=lock_file_path,
+            lock_file_path=ISSUE_LOCK_FILE,
             lock_file_status="written",
         )
         result["message"] = (
@@ -1503,8 +1467,15 @@ def gitea_create_pr(
     verify_preflight_purity(remote, worktree_path=worktree_path)
     h, o, r = _resolve(remote, host, org, repo)
 
-    # ── Issue Lock Validation (Issue #194 / #196 / #443) ──
-    lock_data = _resolve_issue_lock_for_pr(remote=remote, org=o, repo=r, head=head)
+    # ── Issue Lock Validation (Issue #194 / #196) ──
+    if not os.path.exists(ISSUE_LOCK_FILE):
+        raise RuntimeError("Issue lock is missing (fail closed). Call gitea_lock_issue first.")
+
+    try:
+        with open(ISSUE_LOCK_FILE, "r", encoding="utf-8") as f:
+            lock_data = json.load(f)
+    except Exception as e:
+        raise RuntimeError(f"Could not read issue lock file: {e} (fail closed)")
 
     lock_provenance_check = issue_lock_provenance.assess_lock_file_for_create_pr(
         lock_data
@@ -3038,7 +3009,13 @@ def _prepare_commit_payload_files(files: list[dict]) -> tuple[list[dict], list[d
     processed_files = []
     source_proofs = []
 
-    lock_data = issue_lock_store.read_session_issue_lock() or {}
+    lock_data = {}
+    if os.path.exists(ISSUE_LOCK_FILE):
+        try:
+            with open(ISSUE_LOCK_FILE, "r", encoding="utf-8") as f:
+                lock_data = json.load(f)
+        except Exception:
+            pass
 
     locked_worktree = lock_data.get("worktree_path")
     if locked_worktree:

issue_lock_adoption.py

@@ -1,4 +1,4 @@
-"""Own-branch lock adoption / recovery for ``gitea_lock_issue`` (#442 / #443).
+"""Own-branch lock adoption / recovery for ``gitea_lock_issue`` (#442).
 
 When an issue's own already-pushed branch exists, lock reacquisition must be
 allowed (adoption) instead of being treated as #400 duplicate competing work.
@@ -153,4 +153,4 @@ def build_adoption_proof(
         "no_competing_live_lock_proof": bool(competing_lock_checked),
         "lock_file_path": lock_file_path,
         "lock_file_status": lock_file_status,
-    }
+    }

issue_lock_store.py

@@ -1,385 +0,0 @@
-"""Keyed, persistent issue-lock storage (#443).
-
-Replaces the single global ``/tmp/gitea_issue_lock.json`` slot with per-issue
-lock files under ``GITEA_ISSUE_LOCK_DIR`` (default
-``~/.cache/gitea-tools/issue-locks``). Each MCP session binds its active lock
-via a per-process pointer file so concurrent repos/issues never clobber each
-other.
-"""
-
-from __future__ import annotations
-
-import json
-import os
-import re
-import tempfile
-from datetime import datetime, timedelta, timezone
-from typing import Any
-
-LOCK_DIR_ENV = "GITEA_ISSUE_LOCK_DIR"
-DEFAULT_LOCK_DIR = os.path.expanduser("~/.cache/gitea-tools/issue-locks")
-WORK_LEASE_TTL_HOURS = 4
-AUTHOR_ISSUE_WORK_LEASE = "author_issue_work"
-
-_SAFE_SEGMENT_RE = re.compile(r"[^A-Za-z0-9._+-]+")
-
-
-def default_lock_dir() -> str:
-    raw = (os.environ.get(LOCK_DIR_ENV) or DEFAULT_LOCK_DIR).strip()
-    return raw or DEFAULT_LOCK_DIR
-
-
-def _sanitize_segment(value: str) -> str:
-    text = (value or "").strip()
-    if not text:
-        return "_"
-    return _SAFE_SEGMENT_RE.sub("_", text)
-
-
-def lock_key(
-    *,
-    remote: str,
-    org: str,
-    repo: str,
-    issue_number: int,
-) -> str:
-    return "-".join(
-        _sanitize_segment(part)
-        for part in (remote, org, repo, str(issue_number))
-    )
-
-
-def lock_file_path(
-    *,
-    remote: str,
-    org: str,
-    repo: str,
-    issue_number: int,
-    lock_dir: str | None = None,
-) -> str:
-    root = (lock_dir or default_lock_dir()).strip()
-    return os.path.join(root, f"{lock_key(remote=remote, org=org, repo=repo, issue_number=issue_number)}.json")
-
-
-def session_pointer_path(lock_dir: str | None = None) -> str:
-    root = (lock_dir or default_lock_dir()).strip()
-    return os.path.join(root, f"session-{os.getpid()}.json")
-
-
-def _ensure_lock_dir(lock_dir: str | None = None) -> str:
-    root = (lock_dir or default_lock_dir()).strip()
-    os.makedirs(root, mode=0o700, exist_ok=True)
-    return root
-
-
-def read_lock_file(path: str) -> dict[str, Any] | None:
-    lock_path = (path or "").strip()
-    if not lock_path or not os.path.exists(lock_path):
-        return None
-    try:
-        with open(lock_path, encoding="utf-8") as handle:
-            data = json.load(handle)
-    except (OSError, json.JSONDecodeError):
-        return None
-    return data if isinstance(data, dict) else None
-
-
-def save_lock_file(path: str, data: dict[str, Any]) -> None:
-    lock_path = (path or "").strip()
-    if not lock_path:
-        raise ValueError("lock path is required (fail closed)")
-    parent = os.path.dirname(lock_path) or "."
-    os.makedirs(parent, mode=0o700, exist_ok=True)
-    payload = json.dumps(data, indent=2, sort_keys=True) + "\n"
-    fd, temp_path = tempfile.mkstemp(prefix=".lock-", suffix=".json", dir=parent)
-    try:
-        with os.fdopen(fd, "w", encoding="utf-8") as handle:
-            handle.write(payload)
-            handle.flush()
-            os.fsync(handle.fileno())
-        os.replace(temp_path, lock_path)
-    finally:
-        if os.path.exists(temp_path):
-            try:
-                os.remove(temp_path)
-            except OSError:
-                pass
-
-
-def bind_session_lock(lock_data: dict[str, Any], lock_dir: str | None = None) -> str:
-    """Persist a keyed lock and bind it to the current process session."""
-    remote = str(lock_data.get("remote") or "")
-    org = str(lock_data.get("org") or "")
-    repo = str(lock_data.get("repo") or "")
-    issue_number = int(lock_data.get("issue_number") or 0)
-    if not remote or not org or not repo or issue_number <= 0:
-        raise ValueError("lock record must include remote, org, repo, and issue_number")
-
-    root = _ensure_lock_dir(lock_dir)
-    path = lock_file_path(
-        remote=remote,
-        org=org,
-        repo=repo,
-        issue_number=issue_number,
-        lock_dir=root,
-    )
-    record = dict(lock_data)
-    record["lock_file_path"] = path
-    record["session_pid"] = os.getpid()
-    save_lock_file(path, record)
-
-    pointer = {
-        "pid": os.getpid(),
-        "lock_file_path": path,
-        "issue_number": issue_number,
-        "branch_name": record.get("branch_name"),
-        "remote": remote,
-        "org": org,
-        "repo": repo,
-    }
-    save_lock_file(session_pointer_path(root), pointer)
-    return path
-
-
-def read_session_issue_lock(lock_dir: str | None = None) -> dict[str, Any] | None:
-    root = (lock_dir or default_lock_dir()).strip()
-    pointer = read_lock_file(session_pointer_path(root))
-    if not pointer:
-        return None
-    lock_path = str(pointer.get("lock_file_path") or "").strip()
-    if not lock_path:
-        return None
-    return read_lock_file(lock_path)
-
-
-def load_issue_lock(
-    *,
-    remote: str,
-    org: str,
-    repo: str,
-    issue_number: int,
-    lock_dir: str | None = None,
-) -> dict[str, Any] | None:
-    return read_lock_file(
-        lock_file_path(
-            remote=remote,
-            org=org,
-            repo=repo,
-            issue_number=issue_number,
-            lock_dir=lock_dir,
-        )
-    )
-
-
-def iter_lock_files(lock_dir: str | None = None) -> list[str]:
-    root = (lock_dir or default_lock_dir()).strip()
-    if not os.path.isdir(root):
-        return []
-    paths: list[str] = []
-    for name in os.listdir(root):
-        if not name.endswith(".json") or name.startswith("session-"):
-            continue
-        paths.append(os.path.join(root, name))
-    return sorted(paths)
-
-
-def find_lock_for_branch(
-    *,
-    remote: str,
-    org: str,
-    repo: str,
-    branch_name: str,
-    lock_dir: str | None = None,
-) -> dict[str, Any] | None:
-    target = (branch_name or "").strip()
-    if not target:
-        return None
-    for path in iter_lock_files(lock_dir):
-        lock = read_lock_file(path)
-        if not lock:
-            continue
-        if (
-            str(lock.get("remote") or "") == remote
-            and str(lock.get("org") or "") == org
-            and str(lock.get("repo") or "") == repo
-            and str(lock.get("branch_name") or "").strip() == target
-        ):
-            lock = dict(lock)
-            lock.setdefault("lock_file_path", path)
-            return lock
-    return None
-
-
-def _lease_now(now: datetime | None = None) -> datetime:
-    return now or datetime.now(timezone.utc)
-
-
-def _parse_lease_timestamp(value: str | None) -> datetime | None:
-    text = (value or "").strip()
-    if not text:
-        return None
-    try:
-        return datetime.fromisoformat(text.replace("Z", "+00:00")).astimezone(timezone.utc)
-    except ValueError:
-        return None
-
-
-def lease_expires_at(lock: dict[str, Any] | None) -> datetime | None:
-    if not lock:
-        return None
-    lease = lock.get("work_lease")
-    if not isinstance(lease, dict):
-        return None
-    return _parse_lease_timestamp(lease.get("expires_at"))
-
-
-def is_lease_expired(lock: dict[str, Any] | None, *, now: datetime | None = None) -> bool:
-    expires = lease_expires_at(lock)
-    if expires is None:
-        return False
-    return expires <= _lease_now(now)
-
-
-def is_lease_live(lock: dict[str, Any] | None, *, now: datetime | None = None) -> bool:
-    if not lock:
-        return False
-    lease = lock.get("work_lease")
-    if not isinstance(lease, dict):
-        return True
-    expires = _parse_lease_timestamp(lease.get("expires_at"))
-    if expires is None:
-        return True
-    return expires > _lease_now(now)
-
-
-def _same_realpath(left: str | None, right: str | None) -> bool:
-    if not left or not right:
-        return False
-    try:
-        return os.path.realpath(left) == os.path.realpath(right)
-    except OSError:
-        return left == right
-
-
-def assess_same_issue_lease_conflict(
-    existing_lock: dict[str, Any] | None,
-    *,
-    issue_number: int,
-    branch_name: str,
-    worktree_path: str,
-    operation_type: str = AUTHOR_ISSUE_WORK_LEASE,
-    now: datetime | None = None,
-) -> str | None:
-    """Return a fail-closed error when a competing live lease blocks acquisition."""
-    if not existing_lock:
-        return None
-
-    existing_issue = existing_lock.get("issue_number")
-    lease = existing_lock.get("work_lease")
-    existing_operation = (
-        lease.get("operation_type")
-        if isinstance(lease, dict)
-        else AUTHOR_ISSUE_WORK_LEASE
-    )
-    if existing_issue != issue_number or existing_operation != operation_type:
-        return None
-
-    existing_branch = existing_lock.get("branch_name")
-    existing_worktree = existing_lock.get("worktree_path")
-    same_owner = (
-        existing_branch == branch_name
-        and _same_realpath(str(existing_worktree or ""), worktree_path)
-    )
-    if is_lease_expired(existing_lock, now=now):
-        return (
-            f"Issue #{issue_number} has an expired {operation_type} lease on "
-            f"branch '{existing_branch}' from worktree '{existing_worktree}'. "
-            "Recovery review is required before takeover (fail closed)"
-        )
-    if same_owner:
-        return None
-    return (
-        f"Issue #{issue_number} already has an active {operation_type} lease on "
-        f"branch '{existing_branch}' from worktree '{existing_worktree}' "
-        "(fail closed)"
-    )
-
-
-def assess_foreign_lock_overwrite(
-    existing_lock: dict[str, Any] | None,
-    incoming_lock: dict[str, Any],
-    *,
-    now: datetime | None = None,
-) -> str | None:
-    """Block writes that would clobber an unrelated live lease on the same key."""
-    if not existing_lock:
-        return None
-
-    same_issue = existing_lock.get("issue_number") == incoming_lock.get("issue_number")
-    same_branch = existing_lock.get("branch_name") == incoming_lock.get("branch_name")
-    same_worktree = _same_realpath(
-        str(existing_lock.get("worktree_path") or ""),
-        str(incoming_lock.get("worktree_path") or ""),
-    )
-    if same_issue and same_branch and same_worktree:
-        return None
-    if not is_lease_live(existing_lock, now=now):
-        return None
-    return (
-        "Refusing to overwrite a live foreign issue lock "
-        f"(issue #{existing_lock.get('issue_number')}, "
-        f"branch '{existing_lock.get('branch_name')}', "
-        f"worktree '{existing_lock.get('worktree_path')}') (fail closed)"
-    )
-
-
-def find_live_lock_for_branch(
-    branch_name: str,
-    lock_dir: str | None = None,
-) -> dict[str, Any] | None:
-    target = (branch_name or "").strip()
-    if not target:
-        return None
-    for path in iter_lock_files(lock_dir):
-        lock = read_lock_file(path)
-        if not lock:
-            continue
-        if str(lock.get("branch_name") or "").strip() != target:
-            continue
-        if not is_lease_live(lock):
-            continue
-        record = dict(lock)
-        record.setdefault("lock_file_path", path)
-        return record
-    return None
-
-
-def resolve_locked_branch_for_session(
-    branch_name: str | None = None,
-    lock_dir: str | None = None,
-) -> str:
-    if branch_name:
-        lock = find_live_lock_for_branch(branch_name, lock_dir)
-        if lock:
-            return str(lock.get("branch_name") or "")
-    lock = read_session_issue_lock(lock_dir)
-    return str((lock or {}).get("branch_name") or "")
-
-
-def has_active_issue_lock(
-    branch: str,
-    *,
-    lock_dir: str | None = None,
-) -> bool:
-    target = (branch or "").strip()
-    if not target:
-        return False
-    for path in iter_lock_files(lock_dir):
-        lock = read_lock_file(path)
-        if not lock:
-            continue
-        if str(lock.get("branch_name") or "").strip() != target:
-            continue
-        if is_lease_live(lock):
-            return True
-    return False

merged_cleanup_reconcile.py

@@ -13,9 +13,9 @@ import subprocess
 from typing import Any
 
 from reviewer_worktree import parse_dirty_tracked_files
-import issue_lock_store
 
 PROTECTED_BRANCHES = frozenset({"master", "main", "dev"})
+ISSUE_LOCK_FILE = os.environ.get("GITEA_ISSUE_LOCK_FILE", "/tmp/gitea_issue_lock.json")
 CLOSES_FIXES_RE = re.compile(r"\b(?:closes|fixes)\s+#(\d+)\b", re.IGNORECASE)
 
 
@@ -37,18 +37,22 @@ def resolve_worktree_path(project_root: str, branch: str) -> str:
 
 
 def read_issue_lock(path: str | None = None) -> dict[str, Any] | None:
-    if path:
-        return issue_lock_store.read_lock_file(path.strip())
-    return issue_lock_store.read_session_issue_lock()
+    lock_path = (path or ISSUE_LOCK_FILE).strip()
+    if not lock_path or not os.path.exists(lock_path):
+        return None
+    try:
+        with open(lock_path, encoding="utf-8") as handle:
+            data = json.load(handle)
+    except (OSError, json.JSONDecodeError):
+        return None
+    return data if isinstance(data, dict) else None
 
 
 def has_active_issue_lock(branch: str, lock_path: str | None = None) -> bool:
-    if lock_path:
-        lock = issue_lock_store.read_lock_file(lock_path.strip())
-        if not lock:
-            return False
-        return (lock.get("branch_name") or "").strip() == (branch or "").strip()
-    return issue_lock_store.has_active_issue_lock(branch)
+    lock = read_issue_lock(lock_path)
+    if not lock:
+        return False
+    return (lock.get("branch_name") or "").strip() == (branch or "").strip()
 
 
 def collect_open_pr_heads(open_prs: list[dict[str, Any]]) -> set[str]:

scripts/worktree-start

@@ -38,21 +38,13 @@ fi
 branch="$1"
 start_ref="${2:-prgs/master}"
 
-script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-repo_root="$(cd "$script_dir/.." && pwd)"
-
 # Enforce issue-linked, traceable branch names (issue → branch → worktree → PR).
 if [[ "$allow_unlinked" -eq 0 ]]; then
-  locked_branch=$(python3 -c "
-import sys
-sys.path.insert(0, '$repo_root')
-import issue_lock_store
-print(issue_lock_store.resolve_locked_branch_for_session('$branch'))
-")
-  if [[ -z "$locked_branch" ]]; then
-    echo "Error: No session issue lock is bound. Call gitea_lock_issue before branch creation (fail closed)." >&2
+  if [[ ! -f "/tmp/gitea_issue_lock.json" ]]; then
+    echo "Error: Issue lock file '/tmp/gitea_issue_lock.json' is missing. You must lock exactly one issue before branch creation (fail closed)." >&2
     exit 2
   fi
+  locked_branch=$(python3 -c "import json; print(json.load(open('/tmp/gitea_issue_lock.json')).get('branch_name', ''))")
   if [[ "$branch" != "$locked_branch" ]]; then
     echo "Error: Requested branch '$branch' does not match locked branch '$locked_branch' (fail closed)." >&2
     exit 2
@@ -76,6 +68,8 @@ EOF
   fi
 fi
 
+script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+repo_root="$(cd "$script_dir/.." && pwd)"
 worktree_name="${branch//\//-}"
 worktree_path="$repo_root/branches/$worktree_name"
 

tests/test_agent_temp_artifacts.py

@@ -74,14 +74,11 @@ ISSUE_WRITE_ENV = {
 
 class TestIssueLockArtifactWarning(unittest.TestCase):
     def setUp(self):
-        self._lock_dir = tempfile.TemporaryDirectory()
-        env = {**ISSUE_WRITE_ENV, "GITEA_ISSUE_LOCK_DIR": self._lock_dir.name}
-        self._env_patcher = patch.dict(os.environ, env, clear=True)
+        self._env_patcher = patch.dict(os.environ, ISSUE_WRITE_ENV, clear=True)
         self._env_patcher.start()
 
     def tearDown(self):
         self._env_patcher.stop()
-        self._lock_dir.cleanup()
 
     @patch(
         "mcp_server.issue_duplicate_context_fetcher",
@@ -90,8 +87,9 @@ class TestIssueLockArtifactWarning(unittest.TestCase):
     @patch("mcp_server.api_get_all", return_value=[])
     @patch("mcp_server._auth", return_value="token x")
     @patch("mcp_server._resolve", return_value=("h", "o", "r"))
+    @patch("mcp_server.ISSUE_LOCK_FILE", new_callable=lambda: tempfile.mktemp())
     @patch("issue_lock_worktree.read_worktree_git_state")
-    def test_lock_success_includes_artifact_warning(self, mock_state, *_mocks):
+    def test_lock_success_includes_artifact_warning(self, mock_state, _lock_file, *_mocks):
         mock_state.return_value = {
             "current_branch": "master",
             "porcelain_status": "?? _emit_payload.py\n",

tests/test_commit_payloads.py

@@ -66,12 +66,9 @@ class TestCommitPayloads(unittest.TestCase):
         )
         self.locked_worktree_path = os.path.realpath(self.locked_worktree_dir.name)
 
-        import issue_lock_store
+        self.lock_file_path = "/tmp/gitea_issue_lock.json"
         import issue_lock_provenance
 
-        self._lock_dir = tempfile.TemporaryDirectory()
-        os.environ["GITEA_ISSUE_LOCK_DIR"] = self._lock_dir.name
-
         work_lease = {
             "operation_type": "author_issue_work",
             "issue_number": 263,
@@ -92,7 +89,8 @@ class TestCommitPayloads(unittest.TestCase):
                 claimant=work_lease.get("claimant"),
             ),
         }
-        self.lock_file_path = issue_lock_store.bind_session_lock(self.lock_data)
+        with open(self.lock_file_path, "w", encoding="utf-8") as fh:
+            fh.write(json.dumps(self.lock_data))
 
         # Reset preflight status to bypass/pass verification in tests
         self.orig_whoami_called = mcp_server._preflight_whoami_called
@@ -116,7 +114,8 @@ class TestCommitPayloads(unittest.TestCase):
 
         self._dir.cleanup()
         self.locked_worktree_dir.cleanup()
-        self._lock_dir.cleanup()
+        if os.path.exists(self.lock_file_path):
+            os.remove(self.lock_file_path)
 
     def _env(self, profile: str) -> dict:
         return {
@@ -125,7 +124,6 @@ class TestCommitPayloads(unittest.TestCase):
             "GITEA_TOKEN_AUTHOR": "author-pass",
             "GITEA_TEST_PORCELAIN": "",
             "GITEA_AUTHOR_WORKTREE": self.locked_worktree_path,
-            "GITEA_ISSUE_LOCK_DIR": self._lock_dir.name,
         }
 
     @patch("mcp_server.api_request")

tests/test_create_issue_workspace_guard.py

@@ -106,32 +106,20 @@ class TestCreateIssueWorkspaceGuard(unittest.TestCase):
     @patch("gitea_mcp_server.issue_lock_worktree.read_worktree_git_state", return_value={"current_branch": "feat/issue-1"})
     @patch("os.path.exists", return_value=True)
     @patch("os.path.isdir", return_value=True)
-    @patch("author_mutation_worktree.subprocess.run")
     @patch("subprocess.run")
-    def test_create_issue_wrong_repo_fails_closed(self, mock_run, mock_amw_run, mock_isdir, mock_exists, _git, _get_all, mock_api, _role, _ns, _prof, _auth):
+    def test_create_issue_wrong_repo_fails_closed(self, mock_run, mock_isdir, mock_exists, _git, _get_all, mock_api, _role, _ns, _prof, _auth):
+        # Mock subprocess.run for git --git-common-dir to return a different path
+        mock_res = MagicMock()
+        mock_res.stdout = "/Users/jasonwalker/Development/some-other-repo/.git\n"
+        mock_run.return_value = mock_res
+
         wrong_repo_path = os.path.join(CONTROL_CHECKOUT_ROOT, "branches", "feat-issue-1")
 
-        def _subprocess_side_effect(cmd, *args, **kwargs):
-            mock_res = MagicMock(returncode=0)
-            if "--git-common-dir" in cmd:
-                cwd = cmd[cmd.index("-C") + 1] if "-C" in cmd else ""
-                if cwd == wrong_repo_path:
-                    mock_res.stdout = "/Users/jasonwalker/Development/some-other-repo/.git\n"
-                else:
-                    mock_res.stdout = f"{CONTROL_CHECKOUT_ROOT}/.git\n"
-            else:
-                mock_res.stdout = ""
-            return mock_res
-
-        mock_run.side_effect = _subprocess_side_effect
-        mock_amw_run.side_effect = _subprocess_side_effect
-
         with patch.object(srv, "PROJECT_ROOT", CONTROL_CHECKOUT_ROOT):
-            with patch("gitea_mcp_server._get_workspace_porcelain", return_value=""):
-                with self.assertRaises(RuntimeError) as ctx:
-                    srv.gitea_create_issue(
-                        title="Test issue", body="body", worktree_path=wrong_repo_path
-                    )
+            with self.assertRaises(RuntimeError) as ctx:
+                srv.gitea_create_issue(
+                    title="Test issue", body="body", worktree_path=wrong_repo_path
+                )
         self.assertIn("does not belong to the target repository", str(ctx.exception))
 
     @patch("gitea_mcp_server._auth", return_value=FAKE_AUTH)

tests/test_issue_lock_adoption.py

@@ -1,4 +1,4 @@
-"""Unit tests for own-branch lock adoption decision (#442 / #443)."""
+"""Unit tests for own-branch lock adoption decision (#442)."""
 import sys
 import unittest
 from pathlib import Path
@@ -115,7 +115,7 @@ class TestBuildAdoptionProof(unittest.TestCase):
             assessment=assessment,
             open_pr_checked=True,
             competing_lock_checked=True,
-            lock_file_path="/tmp/example-lock.json",
+            lock_file_path="/tmp/gitea_issue_lock.json",
             lock_file_status="written",
         )
         for key in (
@@ -135,4 +135,4 @@ class TestBuildAdoptionProof(unittest.TestCase):
 
 
 if __name__ == "__main__":
-    unittest.main()
+    unittest.main()

tests/test_issue_lock_store.py

@@ -1,181 +0,0 @@
-"""Unit tests for keyed issue-lock storage (#443)."""
-import json
-import os
-import sys
-import tempfile
-import unittest
-from datetime import datetime, timedelta, timezone
-from pathlib import Path
-from unittest import mock
-
-sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
-
-import issue_lock_store as ils  # noqa: E402
-
-
-def _lease(expires_at: str) -> dict:
-    return {
-        "operation_type": ils.AUTHOR_ISSUE_WORK_LEASE,
-        "expires_at": expires_at,
-        "created_at": "2026-01-01T00:00:00Z",
-        "last_heartbeat_at": "2026-01-01T00:00:00Z",
-    }
-
-
-def _lock_record(**overrides) -> dict:
-    record = {
-        "issue_number": 420,
-        "branch_name": "feat/issue-420-server-code-parity",
-        "remote": "prgs",
-        "org": "Scaled-Tech-Consulting",
-        "repo": "Gitea-Tools",
-        "worktree_path": "/tmp/wt-420",
-        "work_lease": _lease("2999-01-01T00:00:00Z"),
-    }
-    record.update(overrides)
-    return record
-
-
-class TestIssueLockStore(unittest.TestCase):
-    def setUp(self):
-        self._dir = tempfile.TemporaryDirectory()
-        self.lock_dir = self._dir.name
-        self._env = mock.patch.dict(os.environ, {"GITEA_ISSUE_LOCK_DIR": self.lock_dir})
-        self._env.start()
-
-    def tearDown(self):
-        self._env.stop()
-        self._dir.cleanup()
-
-    def test_concurrent_repo_locks_do_not_overwrite(self):
-        lock_a = _lock_record(
-            issue_number=108,
-            branch_name="feat/issue-108-root-menu",
-            repo="mcp-control-plane",
-            worktree_path="/tmp/wt-108",
-        )
-        lock_b = _lock_record(
-            issue_number=420,
-            branch_name="feat/issue-420-server-code-parity",
-            repo="Gitea-Tools",
-            worktree_path="/tmp/wt-420",
-        )
-        path_a = ils.bind_session_lock(lock_a)
-        with mock.patch("os.getpid", return_value=9999):
-            path_b = ils.bind_session_lock(lock_b)
-
-        self.assertNotEqual(path_a, path_b)
-        self.assertTrue(os.path.exists(path_a))
-        self.assertTrue(os.path.exists(path_b))
-        stored_a = ils.read_lock_file(path_a)
-        stored_b = ils.read_lock_file(path_b)
-        self.assertEqual(stored_a["issue_number"], 108)
-        self.assertEqual(stored_b["issue_number"], 420)
-
-    def test_concurrent_issue_locks_same_repo_do_not_overwrite(self):
-        lock_a = _lock_record(issue_number=427, branch_name="feat/issue-427-a")
-        lock_b = _lock_record(issue_number=428, branch_name="feat/issue-428-b")
-        path_a = ils.bind_session_lock(lock_a)
-        with mock.patch("os.getpid", return_value=4242):
-            path_b = ils.bind_session_lock(lock_b)
-
-        self.assertNotEqual(path_a, path_b)
-        self.assertEqual(ils.read_lock_file(path_a)["issue_number"], 427)
-        self.assertEqual(ils.read_lock_file(path_b)["issue_number"], 428)
-
-    def test_foreign_live_lease_blocks_overwrite(self):
-        existing = _lock_record(
-            branch_name="feat/issue-420-other",
-            worktree_path="/tmp/other",
-            work_lease=_lease("2999-01-01T00:00:00Z"),
-        )
-        path = ils.lock_file_path(
-            remote="prgs",
-            org="Scaled-Tech-Consulting",
-            repo="Gitea-Tools",
-            issue_number=420,
-        )
-        ils.save_lock_file(path, existing)
-
-        incoming = _lock_record(worktree_path="/tmp/mine")
-        block = ils.assess_foreign_lock_overwrite(existing, incoming)
-        self.assertIn("live foreign issue lock", block or "")
-
-    def test_expired_lease_allows_takeover_with_conflict_check(self):
-        existing = _lock_record(
-            branch_name="feat/issue-420-other",
-            worktree_path="/tmp/other",
-            work_lease=_lease("2000-01-01T00:00:00Z"),
-        )
-        incoming = _lock_record(worktree_path="/tmp/mine")
-        self.assertIsNone(ils.assess_foreign_lock_overwrite(existing, incoming))
-        block = ils.assess_same_issue_lease_conflict(
-            existing,
-            issue_number=420,
-            branch_name="feat/issue-420-server-code-parity",
-            worktree_path="/tmp/mine",
-        )
-        self.assertIn("Recovery review is required", block or "")
-
-    def test_same_owner_lease_conflict_allows_refresh(self):
-        worktree = "/tmp/wt-420"
-        existing = _lock_record(worktree_path=worktree)
-        block = ils.assess_same_issue_lease_conflict(
-            existing,
-            issue_number=420,
-            branch_name="feat/issue-420-server-code-parity",
-            worktree_path=worktree,
-        )
-        self.assertIsNone(block)
-
-    def test_find_lock_for_branch_after_restart(self):
-        record = _lock_record()
-        path = ils.lock_file_path(
-            remote="prgs",
-            org="Scaled-Tech-Consulting",
-            repo="Gitea-Tools",
-            issue_number=420,
-        )
-        ils.save_lock_file(path, record)
-
-        with mock.patch("os.getpid", return_value=5555):
-            self.assertIsNone(ils.read_session_issue_lock())
-
-        found = ils.find_lock_for_branch(
-            remote="prgs",
-            org="Scaled-Tech-Consulting",
-            repo="Gitea-Tools",
-            branch_name="feat/issue-420-server-code-parity",
-        )
-        self.assertEqual(found["issue_number"], 420)
-
-    def test_has_active_issue_lock_scans_keyed_store(self):
-        ils.bind_session_lock(_lock_record())
-        self.assertTrue(
-            ils.has_active_issue_lock("feat/issue-420-server-code-parity")
-        )
-        self.assertFalse(ils.has_active_issue_lock("feat/issue-999-other"))
-
-    def test_atomic_write_preserves_unrelated_lock(self):
-        path_a = ils.lock_file_path(
-            remote="prgs",
-            org="Scaled-Tech-Consulting",
-            repo="Gitea-Tools",
-            issue_number=108,
-        )
-        ils.save_lock_file(path_a, _lock_record(issue_number=108, repo="mcp-control-plane"))
-        path_b = ils.lock_file_path(
-            remote="prgs",
-            org="Scaled-Tech-Consulting",
-            repo="Gitea-Tools",
-            issue_number=420,
-        )
-        ils.save_lock_file(path_b, _lock_record())
-
-        self.assertTrue(os.path.exists(path_a))
-        self.assertTrue(os.path.exists(path_b))
-        self.assertEqual(ils.read_lock_file(path_a)["issue_number"], 108)
-
-
-if __name__ == "__main__":
-    unittest.main()

tests/test_issue_work_duplicate_gate.py

@@ -1,4 +1,5 @@
 """Tests for early duplicate-work detection (#400)."""
+import json
 import os
 import sys
 import tempfile
@@ -9,7 +10,6 @@ from unittest.mock import patch
 sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
 
 import issue_lock_provenance
-import issue_lock_store
 import issue_work_duplicate_gate as dup_gate
 import mcp_server
 from issue_work_duplicate_gate import (
@@ -142,29 +142,26 @@ class TestInjectableDuplicateFetcher(unittest.TestCase):
                 "porcelain_status": "",
                 "base_equivalent": True,
             },
-        ):
-            with tempfile.TemporaryDirectory() as lock_dir:
-                with patch.dict(os.environ, {
-                    "GITEA_ALLOWED_OPERATIONS": "gitea.issue.comment",
-                    "GITEA_ISSUE_LOCK_DIR": lock_dir,
-                }, clear=True):
-                    mcp_server.gitea_lock_issue(
-                        issue_number=400,
-                        branch_name="feat/issue-400-duplicate-work-preflight",
-                        remote="prgs",
-                    )
+        ), patch.dict(os.environ, {
+            "GITEA_ALLOWED_OPERATIONS": "gitea.issue.comment",
+        }, clear=True):
+            with patch.object(mcp_server, "ISSUE_LOCK_FILE", tempfile.mktemp()):
+                mcp_server.gitea_lock_issue(
+                    issue_number=400,
+                    branch_name="feat/issue-400-duplicate-work-preflight",
+                    remote="prgs",
+                )
         self.assertEqual(seen["issue_number"], 400)
 
 
 class TestMcpDuplicateRecheck(unittest.TestCase):
     def setUp(self):
         self._dir = tempfile.TemporaryDirectory()
-        self._env_patch = patch.dict(
-            os.environ,
-            {"GITEA_ISSUE_LOCK_DIR": self._dir.name},
-            clear=False,
+        self.lock_path = os.path.join(self._dir.name, "gitea_issue_lock.json")
+        self._lock_patch = patch.object(
+            mcp_server, "ISSUE_LOCK_FILE", self.lock_path
         )
-        self._env_patch.start()
+        self._lock_patch.start()
         self._remotes = patch.dict(mcp_server.REMOTES, {
             "prgs": {"host": "gitea.example.com", "org": "Example-Org",
                      "repo": "Example-Repo"},
@@ -177,7 +174,6 @@ class TestMcpDuplicateRecheck(unittest.TestCase):
         self._dir.cleanup()
 
     def _write_lock(self, issue_number=400, branch="feat/issue-400-x"):
-        worktree_path = os.path.realpath(os.getcwd())
         work_lease = {
             "operation_type": "author_issue_work",
             "issue_number": issue_number,
@@ -185,19 +181,17 @@ class TestMcpDuplicateRecheck(unittest.TestCase):
             "claimant": {"username": "test-user", "profile": "test-author"},
             "expires_at": "2999-01-01T00:00:00Z",
         }
-        issue_lock_store.bind_session_lock({
-            "issue_number": issue_number,
-            "branch_name": branch,
-            "remote": "prgs",
-            "org": "Example-Org",
-            "repo": "Example-Repo",
-            "worktree_path": worktree_path,
-            "work_lease": work_lease,
-            "lock_provenance": issue_lock_provenance.build_sanctioned_lock_provenance(
-                tool="gitea_lock_issue",
-                claimant=work_lease.get("claimant"),
-            ),
-        })
+        with open(self.lock_path, "w", encoding="utf-8") as fh:
+            json.dump({
+                "issue_number": issue_number,
+                "branch_name": branch,
+                "remote": "prgs",
+                "work_lease": work_lease,
+                "lock_provenance": issue_lock_provenance.build_sanctioned_lock_provenance(
+                    tool="gitea_lock_issue",
+                    claimant=work_lease.get("claimant"),
+                ),
+            }, fh)
 
     @patch("mcp_server._assess_issue_duplicate_gate")
     @patch("mcp_server.get_profile", return_value={
@@ -261,7 +255,6 @@ class TestMcpDuplicateRecheck(unittest.TestCase):
                 base="master",
                 body="Closes #400",
                 remote="prgs",
-                worktree_path=os.path.realpath(os.getcwd()),
             )
         self.assertFalse(result["success"])
         self.assertIsNone(result.get("number"))

tests/test_mcp_server.py

@@ -6,7 +6,6 @@ the MCP protocol) with mocked API responses.
 import json
 import os
 import sys
-import tempfile
 import unittest
 from unittest.mock import patch, MagicMock
 
@@ -46,7 +45,6 @@ from gitea_auth import get_profile  # noqa: E402
 import gitea_config  # noqa: E402
 
 import mcp_server
-import issue_lock_store
 
 FAKE_AUTH = "Basic dGVzdDp0ZXN0"
 
@@ -176,7 +174,6 @@ def _sample_issue_lock(issue_number=123, branch_name="feat/x", **overrides):
         "remote": "dadeschools",
         "org": "Scaled-Tech-Consulting",
         "repo": "Gitea-Tools",
-        "worktree_path": "/tmp/test-worktree",
         "work_lease": work_lease,
         "lock_provenance": issue_lock_provenance.build_sanctioned_lock_provenance(
             tool="gitea_lock_issue",
@@ -192,17 +189,6 @@ def _clear_duplicate_context_fetcher(*_args, **_kwargs):
     return [], [], {"status": "not_claimed"}
 
 
-def _bind_test_lock(**overrides) -> str:
-    remote = overrides.get("remote", "dadeschools")
-    record = _sample_issue_lock(**overrides)
-    if remote in mcp_server.REMOTES:
-        profile = mcp_server.REMOTES[remote]
-        record.setdefault("org", profile["org"])
-        record.setdefault("repo", profile["repo"])
-    record["remote"] = remote
-    return issue_lock_store.bind_session_lock(record)
-
-
 # ---------------------------------------------------------------------------
 # Create Issue
 # ---------------------------------------------------------------------------
@@ -265,21 +251,18 @@ class TestCreatePR(unittest.TestCase):
            return_value=(True, []))
     @patch("mcp_server.api_request")
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
-    def test_creates_pr(self, _auth, mock_api, _role, _dup_fetcher):
-        worktree = os.path.realpath(os.getcwd())
+    @patch("os.path.exists", return_value=True)
+    @patch("builtins.open")
+    def test_creates_pr(self, mock_open, mock_exists, _auth, mock_api, _role, _dup_fetcher):
+        lock_json = json.dumps(_sample_issue_lock(issue_number=123, branch_name="feat/x"))
+        mock_open.return_value.__enter__.return_value.read.return_value = lock_json
         mock_api.return_value = {"number": 3, "html_url": "https://example.com/pulls/3"}
-        with tempfile.TemporaryDirectory() as lock_dir:
-            env = {**CREATE_PR_ENV, "GITEA_ISSUE_LOCK_DIR": lock_dir}
-            with patch.dict(os.environ, env, clear=True):
-                _bind_test_lock(issue_number=123, branch_name="feat/x", worktree_path=worktree)
-                result = gitea_create_pr(
-                    title="feat: X Closes #123",
-                    head="feat/x",
-                    base="main",
-                    worktree_path=worktree,
-                )
+        with patch.dict(os.environ, CREATE_PR_ENV, clear=True):
+            result = gitea_create_pr(title="feat: X Closes #123", head="feat/x", base="main")
         self.assertEqual(result["number"], 3)
         self.assertNotIn("url", result)
+        mock_exists.assert_called_with(ISSUE_LOCK_FILE)
+        mock_open.assert_called_with(ISSUE_LOCK_FILE, "r", encoding="utf-8")
         payload = mock_api.call_args[0][3]
         self.assertEqual(payload["head"], "feat/x")
         self.assertEqual(payload["base"], "main")
@@ -293,42 +276,30 @@ class TestCreatePR(unittest.TestCase):
            return_value=(True, []))
     @patch("mcp_server.api_request")
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
-    def test_create_pr_reveal_opt_in_includes_url(self, _auth, mock_api, _role, _dup_fetcher):
-        worktree = os.path.realpath(os.getcwd())
+    @patch("os.path.exists", return_value=True)
+    @patch("builtins.open")
+    def test_create_pr_reveal_opt_in_includes_url(self, mock_open, mock_exists, _auth, mock_api, _role, _dup_fetcher):
+        lock_json = json.dumps(_sample_issue_lock(issue_number=123, branch_name="feat/x"))
+        mock_open.return_value.__enter__.return_value.read.return_value = lock_json
         mock_api.return_value = {"number": 3, "html_url": "https://example.com/pulls/3"}
-        with tempfile.TemporaryDirectory() as lock_dir:
-            env = {**CREATE_PR_ENV, "GITEA_ISSUE_LOCK_DIR": lock_dir, "GITEA_MCP_REVEAL_ENDPOINTS": "1"}
-            with patch.dict(os.environ, env, clear=True):
-                _bind_test_lock(issue_number=123, branch_name="feat/x", worktree_path=worktree)
-                result = gitea_create_pr(
-                    title="feat: X Closes #123",
-                    head="feat/x",
-                    base="main",
-                    worktree_path=worktree,
-                )
+        env = {**CREATE_PR_ENV, "GITEA_MCP_REVEAL_ENDPOINTS": "1"}
+        with patch.dict(os.environ, env, clear=True):
+            result = gitea_create_pr(title="feat: X Closes #123", head="feat/x", base="main")
         self.assertIn("pulls/3", result["url"])
 
     @patch("mcp_server.role_session_router.check_author_mutation_after_reviewer_stop",
            return_value=(True, []))
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
-    def test_create_pr_locked_issue_mismatch_fails(self, _auth, _role):
-        worktree = os.path.realpath(os.getcwd())
-        with tempfile.TemporaryDirectory() as lock_dir:
-            env = {**CREATE_PR_ENV, "GITEA_ISSUE_LOCK_DIR": lock_dir}
-            with patch.dict(os.environ, env, clear=True):
-                _bind_test_lock(
-                    issue_number=123,
-                    branch_name="feat/x",
-                    worktree_path=worktree,
-                )
-                with self.assertRaises(ValueError) as ctx:
-                    gitea_create_pr(
-                        title="feat: X Closes #999",
-                        head="feat/x",
-                        base="main",
-                        worktree_path=worktree,
-                    )
+    @patch("os.path.exists", return_value=True)
+    @patch("builtins.open")
+    def test_create_pr_locked_issue_mismatch_fails(self, mock_open, mock_exists, _auth, _role):
+        lock_json = json.dumps(_sample_issue_lock(issue_number=123, branch_name="feat/x"))
+        mock_open.return_value.__enter__.return_value.read.return_value = lock_json
+        with patch.dict(os.environ, CREATE_PR_ENV, clear=True):
+            with self.assertRaises(ValueError) as ctx:
+                gitea_create_pr(title="feat: X Closes #999", head="feat/x", base="main")
         self.assertIn("Closes #123", str(ctx.exception))
+        mock_open.assert_called_with(ISSUE_LOCK_FILE, "r", encoding="utf-8")
 
 
 # ---------------------------------------------------------------------------
@@ -3213,12 +3184,7 @@ class TestIssueLocking(unittest.TestCase):
     """Test issue locking and PR gating constraints."""
 
     def setUp(self):
-        self._lock_dir = tempfile.TemporaryDirectory()
-        env = {
-            **ISSUE_WRITE_ENV,
-            "GITEA_ISSUE_LOCK_DIR": self._lock_dir.name,
-        }
-        self._env_patcher = patch.dict(os.environ, env, clear=True)
+        self._env_patcher = patch.dict(os.environ, ISSUE_WRITE_ENV, clear=True)
         self._env_patcher.start()
         self._dup_fetcher_patcher = patch(
             "mcp_server.issue_duplicate_context_fetcher",
@@ -3229,13 +3195,8 @@ class TestIssueLocking(unittest.TestCase):
     def tearDown(self):
         self._dup_fetcher_patcher.stop()
         self._env_patcher.stop()
-        self._lock_dir.cleanup()
-
-    def _create_pr_env(self) -> dict:
-        return {
-            **CREATE_PR_ENV,
-            "GITEA_ISSUE_LOCK_DIR": self._lock_dir.name,
-        }
+        if os.path.exists(ISSUE_LOCK_FILE):
+            os.remove(ISSUE_LOCK_FILE)
 
     @patch(
         "mcp_server.issue_lock_worktree.read_worktree_git_state",
@@ -3253,8 +3214,9 @@ class TestIssueLocking(unittest.TestCase):
         self.assertIn("expires_at", res["work_lease"])
         self.assertIn("last_heartbeat_at", res["work_lease"])
         self.assertEqual(res["work_lease"]["claimant"]["profile"], "gitea-default")
-        self.assertIn("lock_file_path", res)
-        lock = issue_lock_store.read_lock_file(res["lock_file_path"])
+        self.assertTrue(os.path.exists(ISSUE_LOCK_FILE))
+        with open(ISSUE_LOCK_FILE, encoding="utf-8") as f:
+            lock = json.load(f)
         self.assertIn("worktree_path", lock)
         self.assertIn("work_lease", lock)
 
@@ -3316,14 +3278,90 @@ class TestIssueLocking(unittest.TestCase):
     )
     @patch("mcp_server.api_get_all")
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
-    def test_lock_issue_adopts_exact_own_branch(self, _auth, mock_api, _git_state):
-        branch = "feat/issue-196-mutations"
-        self.mock_dup_fetcher.return_value = ([], [branch], {"status": "not_claimed"})
-        mock_api.return_value = [{"name": branch, "commit": {"id": "abc123"}}]
-        res = gitea_lock_issue(issue_number=196, branch_name=branch, remote="prgs")
+    def test_lock_issue_adopts_own_existing_branch(self, _auth, mock_api, _git_state):
+        # #442: the issue's own already-pushed branch is adoptable for recovery.
+        sha = "934688a71dd19d9b46369e73fb3ac356ee0cc211"
+
+        def _api(url, *a, **k):
+            if "/pulls" in url:
+                return []
+            if "/branches" in url:
+                return [{"name": "feat/issue-196-mutations", "commit": {"id": sha}}]
+            return []
+
+        mock_api.side_effect = _api
+        res = gitea_lock_issue(
+            issue_number=196, branch_name="feat/issue-196-mutations", remote="prgs"
+        )
         self.assertTrue(res["success"])
         self.assertIn("adoption", res)
-        self.assertEqual(res["adoption"]["branch_head_commit"], "abc123")
+        proof = res["adoption"]
+        self.assertEqual(proof["issue_number"], 196)
+        self.assertEqual(proof["branch_name"], "feat/issue-196-mutations")
+        self.assertEqual(proof["branch_head_commit"], sha)
+        self.assertTrue(proof["no_existing_pr_proof"])
+        self.assertTrue(proof["no_competing_live_lock_proof"])
+        self.assertEqual(proof["lock_file_path"], ISSUE_LOCK_FILE)
+        self.assertIn("adopt", proof["adoption_reason"].lower())
+        self.assertTrue(os.path.exists(ISSUE_LOCK_FILE))
+
+    @patch(
+        "mcp_server.issue_lock_worktree.read_worktree_git_state",
+        return_value=_clean_master_git_state_for_lock(),
+    )
+    @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
+    def test_lock_issue_open_pr_blocks_adoption(self, _auth, _git_state):
+        # Even with the exact own branch present, an open PR blocks adoption.
+        self.mock_dup_fetcher.return_value = ([{
+            "number": 200,
+            "head": {"ref": "feat/issue-196-mutations"},
+            "title": "WIP",
+            "body": "",
+        }], ["feat/issue-196-mutations"], {"status": "not_claimed"})
+        with self.assertRaises(ValueError) as ctx:
+            gitea_lock_issue(
+                issue_number=196, branch_name="feat/issue-196-mutations", remote="prgs"
+            )
+        self.assertIn("open PR #200 already covers issue", str(ctx.exception))
+        self.assertFalse(os.path.exists(ISSUE_LOCK_FILE))
+
+    @patch("mcp_server.role_session_router.check_author_mutation_after_reviewer_stop",
+           return_value=(True, []))
+    @patch(
+        "mcp_server.issue_lock_worktree.read_worktree_git_state",
+        return_value=_clean_master_git_state_for_lock(),
+    )
+    @patch("mcp_server.api_request")
+    @patch("mcp_server.api_get_all")
+    @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
+    def test_create_pr_proceeds_after_adopted_lock(
+        self, _auth, mock_api, mock_req, _git_state, _role
+    ):
+        # #442 recovery goal: after adopting the own branch, create_pr proceeds.
+        sha = "934688a71dd19d9b46369e73fb3ac356ee0cc211"
+
+        def _api(url, *a, **k):
+            if "/pulls" in url:
+                return []
+            if "/branches" in url:
+                return [{"name": "feat/issue-196-mutations", "commit": {"id": sha}}]
+            return []
+
+        mock_api.side_effect = _api
+        lock_res = gitea_lock_issue(
+            issue_number=196, branch_name="feat/issue-196-mutations", remote="prgs"
+        )
+        self.assertIn("adoption", lock_res)
+
+        mock_req.return_value = {"number": 7, "html_url": "https://gitea.prgs.cc/pulls/7"}
+        with patch.dict(os.environ, CREATE_PR_ENV, clear=True):
+            pr = gitea_create_pr(
+                title="feat: parity gate Closes #196",
+                head="feat/issue-196-mutations",
+                base="master",
+                remote="prgs",
+            )
+        self.assertEqual(pr["number"], 7)
 
     @patch(
         "mcp_server.issue_lock_worktree.read_worktree_git_state",
@@ -3332,27 +3370,16 @@ class TestIssueLocking(unittest.TestCase):
     @patch("mcp_server.api_get_all", return_value=[])
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
     def test_lock_issue_blocks_active_same_operation_lease(self, _auth, _api, _git_state):
-        prgs_repo = mcp_server.REMOTES["prgs"]["repo"]
-        issue_lock_store.save_lock_file(
-            issue_lock_store.lock_file_path(
-                remote="prgs",
-                org="Scaled-Tech-Consulting",
-                repo=prgs_repo,
-                issue_number=196,
-            ),
-            {
+        with open(ISSUE_LOCK_FILE, "w", encoding="utf-8") as f:
+            json.dump({
                 "issue_number": 196,
                 "branch_name": "feat/issue-196-other-work",
-                "remote": "prgs",
-                "org": "Scaled-Tech-Consulting",
-                "repo": prgs_repo,
                 "worktree_path": "/tmp/other-worktree",
                 "work_lease": {
                     "operation_type": "author_issue_work",
                     "expires_at": "2999-01-01T00:00:00Z",
                 },
-            },
-        )
+            }, f)
         with self.assertRaises(RuntimeError) as ctx:
             gitea_lock_issue(issue_number=196, branch_name="feat/issue-196-mutations", remote="prgs")
         self.assertIn("already has an active author_issue_work lease", str(ctx.exception))
@@ -3364,27 +3391,16 @@ class TestIssueLocking(unittest.TestCase):
     @patch("mcp_server.api_get_all", return_value=[])
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
     def test_lock_issue_blocks_expired_same_operation_lease_for_recovery(self, _auth, _api, _git_state):
-        prgs_repo = mcp_server.REMOTES["prgs"]["repo"]
-        issue_lock_store.save_lock_file(
-            issue_lock_store.lock_file_path(
-                remote="prgs",
-                org="Scaled-Tech-Consulting",
-                repo=prgs_repo,
-                issue_number=196,
-            ),
-            {
+        with open(ISSUE_LOCK_FILE, "w", encoding="utf-8") as f:
+            json.dump({
                 "issue_number": 196,
                 "branch_name": "feat/issue-196-other-work",
-                "remote": "prgs",
-                "org": "Scaled-Tech-Consulting",
-                "repo": prgs_repo,
                 "worktree_path": "/tmp/other-worktree",
                 "work_lease": {
                     "operation_type": "author_issue_work",
                     "expires_at": "2000-01-01T00:00:00Z",
                 },
-            },
-        )
+            }, f)
         with self.assertRaises(RuntimeError) as ctx:
             gitea_lock_issue(issue_number=196, branch_name="feat/issue-196-mutations", remote="prgs")
         self.assertIn("Recovery review is required before takeover", str(ctx.exception))
@@ -3451,7 +3467,9 @@ class TestIssueLocking(unittest.TestCase):
            return_value=(True, []))
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
     def test_create_pr_missing_lock_fails(self, _auth, _role):
-        with patch.dict(os.environ, self._create_pr_env(), clear=True):
+        if os.path.exists(ISSUE_LOCK_FILE):
+            os.remove(ISSUE_LOCK_FILE)
+        with patch.dict(os.environ, CREATE_PR_ENV, clear=True):
             with self.assertRaises(RuntimeError) as ctx:
                 gitea_create_pr(title="feat: X Closes #196", head="feat/issue-196-mutations", remote="prgs")
         self.assertIn("Issue lock is missing", str(ctx.exception))
@@ -3460,64 +3478,37 @@ class TestIssueLocking(unittest.TestCase):
            return_value=(True, []))
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
     def test_create_pr_branch_mismatch_fails(self, _auth, _role):
-        worktree = os.path.realpath(os.getcwd())
-        _bind_test_lock(
-            issue_number=196,
-            branch_name="feat/issue-196-mutations",
-            remote="prgs",
-            worktree_path=worktree,
-        )
-        with patch.dict(os.environ, self._create_pr_env(), clear=True):
+        with open(ISSUE_LOCK_FILE, "w", encoding="utf-8") as f:
+            json.dump(_sample_issue_lock(
+                issue_number=196, branch_name="feat/issue-196-mutations"), f)
+        with patch.dict(os.environ, CREATE_PR_ENV, clear=True):
             with self.assertRaises(ValueError) as ctx:
-                gitea_create_pr(
-                    title="feat: X Closes #196",
-                    head="feat/issue-196-different",
-                    remote="prgs",
-                    worktree_path=worktree,
-                )
+                gitea_create_pr(title="feat: X Closes #196", head="feat/issue-196-different", remote="prgs")
         self.assertIn("does not match locked branch", str(ctx.exception))
 
     @patch("mcp_server.role_session_router.check_author_mutation_after_reviewer_stop",
            return_value=(True, []))
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
     def test_create_pr_forbidden_terms_fails(self, _auth, _role):
-        worktree = os.path.realpath(os.getcwd())
-        _bind_test_lock(
-            issue_number=196,
-            branch_name="feat/issue-196-mutations",
-            remote="prgs",
-            worktree_path=worktree,
-        )
-        with patch.dict(os.environ, self._create_pr_env(), clear=True):
+        with open(ISSUE_LOCK_FILE, "w", encoding="utf-8") as f:
+            json.dump(_sample_issue_lock(
+                issue_number=196, branch_name="feat/issue-196-mutations"), f)
+        with patch.dict(os.environ, CREATE_PR_ENV, clear=True):
             for term in ("equivalent to #196", "related to #196", "same as #196"):
                 with self.assertRaises(ValueError) as ctx:
-                    gitea_create_pr(
-                        title=f"feat: X {term}",
-                        head="feat/issue-196-mutations",
-                        remote="prgs",
-                        worktree_path=worktree,
-                    )
+                    gitea_create_pr(title=f"feat: X {term}", head="feat/issue-196-mutations", remote="prgs")
                 self.assertIn("contains forbidden term", str(ctx.exception))
 
     @patch("mcp_server.role_session_router.check_author_mutation_after_reviewer_stop",
            return_value=(True, []))
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
     def test_create_pr_missing_closes_ref_fails(self, _auth, _role):
-        worktree = os.path.realpath(os.getcwd())
-        _bind_test_lock(
-            issue_number=196,
-            branch_name="feat/issue-196-mutations",
-            remote="prgs",
-            worktree_path=worktree,
-        )
-        with patch.dict(os.environ, self._create_pr_env(), clear=True):
+        with open(ISSUE_LOCK_FILE, "w", encoding="utf-8") as f:
+            json.dump(_sample_issue_lock(
+                issue_number=196, branch_name="feat/issue-196-mutations"), f)
+        with patch.dict(os.environ, CREATE_PR_ENV, clear=True):
             with self.assertRaises(ValueError) as ctx:
-                gitea_create_pr(
-                    title="feat: X refs #196",
-                    head="feat/issue-196-mutations",
-                    remote="prgs",
-                    worktree_path=worktree,
-                )
+                gitea_create_pr(title="feat: X refs #196", head="feat/issue-196-mutations", remote="prgs")
         self.assertIn("must contain 'Closes #196' or 'Fixes #196' exactly", str(ctx.exception))
 
     @patch("mcp_server.role_session_router.check_author_mutation_after_reviewer_stop",
@@ -3525,13 +3516,13 @@ class TestIssueLocking(unittest.TestCase):
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
     def test_create_pr_worktree_mismatch_fails(self, _auth, _role):
         scratch = os.path.realpath("/tmp/gitea-tools-author-scratch/issue-249-pr")
-        _bind_test_lock(
-            issue_number=249,
-            branch_name="feat/issue-249-issue-lock-scratch-worktree",
-            worktree_path=scratch,
-            remote="prgs",
-        )
-        with patch.dict(os.environ, self._create_pr_env(), clear=True):
+        with open(ISSUE_LOCK_FILE, "w", encoding="utf-8") as f:
+            json.dump(_sample_issue_lock(
+                issue_number=249,
+                branch_name="feat/issue-249-issue-lock-scratch-worktree",
+                worktree_path=scratch,
+            ), f)
+        with patch.dict(os.environ, CREATE_PR_ENV, clear=True):
             with self.assertRaises(ValueError) as ctx:
                 gitea_create_pr(
                     title="feat: lock scratch worktree Closes #249",
@@ -3545,35 +3536,22 @@ class TestIssueLocking(unittest.TestCase):
            return_value=(True, []))
     @patch("mcp_server.get_auth_header", return_value=FAKE_AUTH)
     def test_create_pr_manual_lock_seed_blocked(self, _auth, _role):
-        worktree = os.path.realpath(os.getcwd())
-        with tempfile.TemporaryDirectory() as lock_dir:
-            env = {**self._create_pr_env(), "GITEA_ISSUE_LOCK_DIR": lock_dir}
-            with patch.dict(os.environ, env, clear=True):
-                issue_lock_store.save_lock_file(
-                    issue_lock_store.lock_file_path(
-                        remote="prgs",
-                        org="Scaled-Tech-Consulting",
-                        repo=mcp_server.REMOTES["prgs"]["repo"],
-                        issue_number=447,
-                        lock_dir=lock_dir,
-                    ),
+        with open(ISSUE_LOCK_FILE, "w", encoding="utf-8") as f:
+            json.dump(
                 _sample_issue_lock(
                     issue_number=447,
                     branch_name="feat/issue-447-lock-provenance",
-                    remote="prgs",
-                    org="Scaled-Tech-Consulting",
-                    repo=mcp_server.REMOTES["prgs"]["repo"],
-                    worktree_path=worktree,
                     lock_provenance=None,
                 ),
+                f,
+            )
+        with patch.dict(os.environ, CREATE_PR_ENV, clear=True):
+            with self.assertRaises(RuntimeError) as ctx:
+                gitea_create_pr(
+                    title="feat: lock provenance Closes #447",
+                    head="feat/issue-447-lock-provenance",
+                    remote="prgs",
                 )
-                with self.assertRaises(RuntimeError) as ctx:
-                    gitea_create_pr(
-                        title="feat: lock provenance Closes #447",
-                        head="feat/issue-447-lock-provenance",
-                        remote="prgs",
-                        worktree_path=worktree,
-                    )
         self.assertIn("lock provenance", str(ctx.exception).lower())
 
     @patch("mcp_server.api_request")
@@ -3583,13 +3561,13 @@ class TestIssueLocking(unittest.TestCase):
     def test_create_pr_honors_scratch_worktree_lock(self, _auth, _role, mock_api):
         scratch = os.path.realpath("/tmp/gitea-tools-author-scratch/issue-249-e2e")
         mock_api.return_value = {"number": 250, "html_url": "https://example/pr/250"}
-        _bind_test_lock(
-            issue_number=249,
-            branch_name="feat/issue-249-issue-lock-scratch-worktree",
-            worktree_path=scratch,
-            remote="prgs",
-        )
-        with patch.dict(os.environ, self._create_pr_env(), clear=True):
+        with open(ISSUE_LOCK_FILE, "w", encoding="utf-8") as f:
+            json.dump(_sample_issue_lock(
+                issue_number=249,
+                branch_name="feat/issue-249-issue-lock-scratch-worktree",
+                worktree_path=scratch,
+            ), f)
+        with patch.dict(os.environ, CREATE_PR_ENV, clear=True):
             res = gitea_create_pr(
                 title="feat: issue-lock scratch worktree Closes #249",
                 head="feat/issue-249-issue-lock-scratch-worktree",

tests/test_workspace_guard_alignment.py

@@ -1,153 +0,0 @@
-"""Tests for runtime_context / mutation-guard workspace alignment (#460)."""
-
-from __future__ import annotations
-
-import os
-import sys
-import unittest
-from pathlib import Path
-from unittest import mock
-from unittest.mock import MagicMock
-
-sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
-
-import author_mutation_worktree as amw  # noqa: E402
-import gitea_mcp_server as srv  # noqa: E402
-
-CONTROL_ROOT = str(Path(__file__).resolve().parents[3])
-BRANCHES_WORKTREE = str(Path(__file__).resolve().parents[1])
-MCP_PROCESS_ROOT = BRANCHES_WORKTREE
-
-
-class TestCanonicalRepoRoot(unittest.TestCase):
-    @mock.patch("subprocess.run")
-    def test_resolves_main_repo_from_branches_worktree(self, mock_run):
-        mock_run.return_value = MagicMock(
-            returncode=0,
-            stdout=f"{CONTROL_ROOT}/.git\n",
-        )
-        root = amw.resolve_canonical_repo_root(BRANCHES_WORKTREE, MCP_PROCESS_ROOT)
-        self.assertEqual(root, CONTROL_ROOT)
-
-    def test_falls_back_when_git_unavailable(self):
-        root = amw.resolve_canonical_repo_root("/missing/path", MCP_PROCESS_ROOT)
-        self.assertEqual(root, os.path.realpath(MCP_PROCESS_ROOT))
-
-
-class TestWorkspaceRepoMembership(unittest.TestCase):
-    @mock.patch("os.path.isdir", return_value=True)
-    @mock.patch("os.path.exists", return_value=True)
-    @mock.patch("subprocess.run")
-    def test_valid_branches_worktree_accepted(self, mock_run, *_exists):
-        mock_run.return_value = MagicMock(
-            returncode=0,
-            stdout=f"{CONTROL_ROOT}/.git\n",
-        )
-        result = amw.assess_workspace_repo_membership(
-            workspace_path=BRANCHES_WORKTREE,
-            canonical_repo_root=CONTROL_ROOT,
-        )
-        self.assertTrue(result["proven"])
-        self.assertFalse(result["block"])
-
-    @mock.patch("os.path.isdir", return_value=True)
-    @mock.patch("os.path.exists", return_value=True)
-    @mock.patch("subprocess.run")
-    def test_wrong_repo_rejected(self, mock_run, *_exists):
-        mock_run.return_value = MagicMock(
-            returncode=0,
-            stdout="/other/repo/.git\n",
-        )
-        result = amw.assess_workspace_repo_membership(
-            workspace_path=BRANCHES_WORKTREE,
-            canonical_repo_root=CONTROL_ROOT,
-        )
-        self.assertTrue(result["block"])
-        self.assertIn("does not belong", result["reasons"][0])
-
-    @mock.patch("os.path.exists", return_value=False)
-    def test_missing_worktree_rejected(self, *_exists):
-        result = amw.assess_workspace_repo_membership(
-            workspace_path=f"{CONTROL_ROOT}/branches/missing-worktree",
-            canonical_repo_root=CONTROL_ROOT,
-        )
-        self.assertTrue(result["block"])
-        self.assertIn("does not exist", result["reasons"][0])
-
-
-class TestRuntimeContextGuardAlignment(unittest.TestCase):
-    def setUp(self):
-        srv._preflight_whoami_called = True
-        srv._preflight_capability_called = True
-        srv._preflight_resolved_role = "author"
-        self._orig_in_test = srv._preflight_in_test_mode
-        srv._preflight_in_test_mode = lambda: False
-        self._env_patch = mock.patch.dict(
-            os.environ,
-            {},
-            clear=False,
-        )
-        self._env_patch.start()
-        os.environ.pop("GITEA_ACTIVE_WORKTREE", None)
-        os.environ.pop("GITEA_AUTHOR_WORKTREE", None)
-
-    def tearDown(self):
-        srv._preflight_in_test_mode = self._orig_in_test
-        self._env_patch.stop()
-
-    def test_runtime_context_and_guard_share_resolved_workspace(self):
-        with mock.patch.object(srv, "PROJECT_ROOT", MCP_PROCESS_ROOT):
-            ctx = srv._resolve_author_mutation_context(BRANCHES_WORKTREE)
-            status = srv.assess_preflight_status(worktree_path=BRANCHES_WORKTREE)
-        self.assertEqual(ctx["workspace_path"], os.path.realpath(BRANCHES_WORKTREE))
-        self.assertEqual(ctx["canonical_repo_root"], CONTROL_ROOT)
-        self.assertFalse(ctx["roots_aligned"])
-        self.assertEqual(
-            status["preflight_workspace"]["active_task_workspace_root"],
-            os.path.realpath(BRANCHES_WORKTREE),
-        )
-        self.assertEqual(
-            status["preflight_workspace"]["canonical_repository_root"],
-            CONTROL_ROOT,
-        )
-        self.assertIn("workspace_root_mismatch", status["preflight_workspace"])
-
-    @mock.patch("subprocess.run")
-    @mock.patch("os.path.isdir", return_value=True)
-    @mock.patch("os.path.exists", return_value=True)
-    def test_declared_branches_worktree_passes_when_mcp_root_differs(
-        self, _exists, _isdir, mock_run
-    ):
-        mock_run.return_value = MagicMock(
-            returncode=0,
-            stdout=f"{CONTROL_ROOT}/.git\n",
-        )
-        with mock.patch.object(srv, "PROJECT_ROOT", MCP_PROCESS_ROOT):
-            with mock.patch.dict("os.environ", {"GITEA_TEST_PORCELAIN": ""}, clear=False):
-                srv.verify_preflight_purity(worktree_path=BRANCHES_WORKTREE)
-
-    def test_stable_checkout_still_rejected(self):
-        with mock.patch.object(srv, "PROJECT_ROOT", CONTROL_ROOT):
-            with mock.patch.dict("os.environ", {"GITEA_TEST_PORCELAIN": ""}, clear=False):
-                with self.assertRaises(RuntimeError) as ctx:
-                    srv.verify_preflight_purity()
-        self.assertIn("stable control checkout", str(ctx.exception))
-
-    @mock.patch("os.path.isdir", return_value=True)
-    @mock.patch("os.path.exists", return_value=True)
-    @mock.patch("subprocess.run")
-    def test_non_branches_worktree_rejected(self, mock_run, *_exists):
-        outside = "/tmp/outside-repo-checkout"
-        mock_run.return_value = MagicMock(
-            returncode=0,
-            stdout=f"{CONTROL_ROOT}/.git\n",
-        )
-        with mock.patch.object(srv, "PROJECT_ROOT", CONTROL_ROOT):
-            with mock.patch.dict("os.environ", {"GITEA_TEST_PORCELAIN": ""}, clear=False):
-                with self.assertRaises(RuntimeError) as ctx:
-                    srv.verify_preflight_purity(worktree_path=outside)
-        self.assertIn("not under", str(ctx.exception))
-
-
-if __name__ == "__main__":
-    unittest.main()

tests/test_worktrees.py

@@ -20,50 +20,33 @@ def run(script, *args):
             branch = arg
             break
 
-    lock_dir_ctx = None
-    extra_env = os.environ.copy()
+    lock_file = Path("/tmp/gitea_issue_lock.json")
+    created_lock = False
     if script == "worktree-start" and branch:
         import re
-        import tempfile
-        import issue_lock_store
-
+        import json
         m = re.search(r"issue-(\d+)", branch)
         if not m:
             m = re.search(r"pr-(\d+)", branch)
         issue_num = int(m.group(1)) if m else 999
-        lock_dir_ctx = tempfile.TemporaryDirectory()
-        extra_env["GITEA_ISSUE_LOCK_DIR"] = lock_dir_ctx.name
-        record = {
+        lock_file.write_text(json.dumps({
             "issue_number": issue_num,
             "branch_name": branch,
             "remote": "prgs",
             "org": "Scaled-Tech-Consulting",
-            "repo": "Gitea-Tools",
-            "worktree_path": "/tmp/test-worktree",
-            "work_lease": {
-                "operation_type": "author_issue_work",
-                "expires_at": "2999-01-01T00:00:00Z",
-            },
-        }
-        path = issue_lock_store.lock_file_path(
-            remote="prgs",
-            org="Scaled-Tech-Consulting",
-            repo="Gitea-Tools",
-            issue_number=issue_num,
-            lock_dir=lock_dir_ctx.name,
-        )
-        issue_lock_store.save_lock_file(path, record)
+            "repo": "Gitea-Tools"
+        }), encoding="utf-8")
+        created_lock = True
 
     try:
         proc = subprocess.run(
             ["bash", str(SCRIPTS / script), *args],
             capture_output=True, text=True, cwd=str(REPO),
-            env=extra_env,
         )
         return proc.returncode, proc.stdout, proc.stderr
     finally:
-        if lock_dir_ctx is not None:
-            lock_dir_ctx.cleanup()
+        if created_lock and lock_file.exists():
+            lock_file.unlink()
 
 
 class TestWorktreeStart(unittest.TestCase):