fix(mcp-health): deterministic MCP namespace attachment (Closes #689)

gitea_mcp_server.py

@@ -24,6 +24,8 @@ import subprocess
 import uuid
 from datetime import datetime, timedelta, timezone
 from typing import Any
+import hashlib
+
 
 
 
@@ -2258,7 +2260,12 @@ def _seed_session_context(
         expected_username=expected,
         source=source,
         canonical_repository_root=canonical_root_pin,
+        cohort_id=_COHORT_ID,
+        startup_sha=_STARTUP_PARITY.get("startup_head"),
+        endpoint=host or (profile.get("base_url") or "").strip() or None,
+        config_fingerprint=_CONFIG_FINGERPRINT,
     )
+
 import issue_work_duplicate_gate  # noqa: E402
 import issue_workflow_labels  # noqa: E402
 import terminal_pr_label_cleanup  # noqa: E402  # #780 status:pr-open terminal rule
@@ -2287,6 +2294,11 @@ import stable_control_runtime  # noqa: E402
 # master has advanced past the running code and fail closed until restart.
 # Read-only operations are never blocked by staleness.
 _STARTUP_PARITY = master_parity_gate.capture_startup_parity(PROJECT_ROOT)
+_COHORT_ID: str = f"cohort-p{os.getpid()}-{_STARTUP_PARITY.get('startup_head') or 'unknown'}"
+_CONFIG_FINGERPRINT: str = hashlib.sha256(
+    (PROJECT_ROOT + str(_STARTUP_PARITY.get("startup_head"))).encode("utf-8")
+).hexdigest()[:16]
+
 
 # Stable-control runtime facts (#615): which runtime this process serves from.
 # These are the *immutable* facts -- process root, branch, head, checkout-ness --
@@ -14197,8 +14209,10 @@ def _current_master_parity() -> dict:
     current_head = master_parity_gate.read_git_head(PROJECT_ROOT)
     live_head = master_parity_gate.read_remote_master_head(
         PROJECT_ROOT, remote=_git_default_remote_name(PROJECT_ROOT))
+    bound_context = session_ctx.get_session_context()
     return master_parity_gate.assess_master_parity(
-        _STARTUP_PARITY, current_head, live_remote_head=live_head)
+        _STARTUP_PARITY, current_head, live_remote_head=live_head, bound_cohort=bound_context)
+
 
 
 def _current_runtime_mode_report(refresh: bool = False) -> dict: