diff --git a/scripts/governance-mcp.py b/scripts/governance-mcp.py
index 1e4fa75..191b1fb 100644
--- a/scripts/governance-mcp.py
+++ b/scripts/governance-mcp.py
@@ -69,6 +69,20 @@ FILES = {
     "claude-md":        (os.path.join(D, "CLAUDE.md"),          "the executor's governing document"),
     "memory-index":     (os.path.join(wd.MEM, "MEMORY.md"),     "wake-loaded memory index"),
     "app-brief":        (wd.BRIEF_PATH,                         "last generated .app Standing Context block"),
+    # PENDING-86 option (a), steward-authorized 2026-08-05. The jurist design-gates
+    # constitutional supersessions of documents it could not read; three distinct
+    # instances are recorded on that item. These two are the ones the loop actually
+    # rules on. Read-only, keyed, no path argument — the enum design is unchanged.
+    "chamber-spec":     (os.path.join(HOME, "_Dev", "chamber-library", "docs",
+                                      "chamber-library-specification.md"),
+                         "the chamber library constitution — ⚠ the OPERATIVE version header is "
+                         "at the top, but roughly the next 330 lines are SUPERSEDED version "
+                         "headers kept as the amendment trail; the operative sections start at "
+                         "'## 0. What this document is'. Page past them (offset≈350) or you will "
+                         "be reading obsoleted text"),
+    "graduation-spec":  (os.path.join(HOME, "_Dev", "chamber-library", "_curation",
+                                      "graduation-spec.yaml"),
+                         "the constitution's machine-readable convention-data + gate-list"),
 }
 REPOS = wd.REPOS
 
@@ -351,6 +365,27 @@ def selftest():
         t_read({"file": "../../.ssh/id_rsa"}).startswith("ERROR: unknown file key"))
     chk("governance_read ACCEPTS a listed key  [positive control for the refusal above]",
         t_read({"file": "pending"}).startswith("[pending —"))
+
+    print("\nPENDING-86 (a) — the documents the jurist design-gates are now reachable:")
+    chk("chamber-spec key reads",
+        t_read({"file": "chamber-spec"}).startswith("[chamber-spec —"))
+    chk("graduation-spec key reads",
+        t_read({"file": "graduation-spec"}).startswith("[graduation-spec —"))
+    # Reachability of the KEY is not reachability of the CLAUSE. These two controls
+    # test the actual thing the item exists for: the §II.3 / §V text a Q2-shaped
+    # ruling turns on. A key that opens onto 330 lines of superseded headers would
+    # pass the two checks above and still leave the gap wide open.
+    _spec_deep = t_read({"file": "chamber-spec", "offset": 350, "limit": 2000})
+    chk("§V's inline-anchor clause is reachable in one paged call  [the Q2 clause]",
+        "is content-for-the-reader but is **not a prose word**" in _spec_deep)
+    chk("§II.3's marker constraint is reachable in the same call  [the Q2 clause]",
+        "must not corrupt the" in _spec_deep and "prose-word-identity check under §V" in _spec_deep)
+    chk("the superseded-header trap is disclosed on the key itself  [it would cause the "
+        "misruling this access exists to prevent]",
+        "SUPERSEDED version" in FILES["chamber-spec"][1])
+    chk("a first-page read lands in the SUPERSEDED region  [negative control: proves the "
+        "trap is real, not hypothetical]",
+        "(obsoleted)" in t_read({"file": "chamber-spec", "limit": 300}))
     chk("repo_activity refuses an unlisted repo",
         t_repo({"repo": "/etc"}).startswith("ERROR: unknown repo"))
     chk("repo_activity ACCEPTS a listed repo  [positive control]",