rename(547): the plugin is grimoire — manifest, MCP key, hooks, env, skills

Step 3 of the Scribe -> Grimoire rename.

- Plugin `grimoire` in marketplace `grimoire-plugin`, MCP server key
  `grimoire`, so tools reach a session as mcp__plugin_grimoire_grimoire__*.
- hooks/scribe_* -> hooks/grimoire_*, their shell functions and the TMPDIR
  ledgers with them; SCRIBE_URL / SCRIBE_TOKEN / SCRIBE_HOOK_DIR /
  SCRIBE_LEDGER_DIRS -> GRIMOIRE_*; the project marker is `.grimoire`.
- skills/using-scribe -> using-grimoire, /grimoire:sync, stored processes
  arrive as grimoire-proc-<slug>; moment_actions names them the same way.
- Migration 0124 rewrites stored skill names (rule_moments,
  rule_moment_judgments, moment_mappings) from scribe:/scribe-proc- to
  grimoire:/grimoire-proc-, so a rule mounted on a skill keeps firing.
- Settings' install commands and MCP-only defaults, the docs and the
  tests follow.
- scripts/check_plugin.py drops the smoke event for a report-check hook
  that has no file in plugin/hooks.

Kept on purpose: the secret-sealing label, and the names that let backups
written as Scribe restore and be counted.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_rule_ledger_ageing.py

@@ -17,7 +17,7 @@ touch gets one. The tests read the constant out of the shell and assert the
 PROPERTY around it, so any TTL works and only a broken comparison fails.
 
 Runs the real shell, like `test_session_context_ledger` and the after-write
-hook's tests, and deliberately with no SCRIBE_URL/SCRIBE_TOKEN: ageing is
+hook's tests, and deliberately with no GRIMOIRE_URL/GRIMOIRE_TOKEN: ageing is
 local, keyless and networkless, and must work on an instance that is
 unreachable or was never configured.
 """
@@ -33,23 +33,23 @@ from pathlib import Path
 import pytest
 
 PLUGIN = Path(__file__).resolve().parents[1] / "plugin" / "hooks"
-DEFS = PLUGIN / "scribe_defs.sh"
+DEFS = PLUGIN / "grimoire_defs.sh"
 
 
 def _ttl() -> int:
     """The TTL as the shell defines it — never a copy of the number."""
-    m = re.search(r"^_SCRIBE_RULE_TTL=(\d+)", DEFS.read_text(), re.M)
-    assert m, "_SCRIBE_RULE_TTL is gone from scribe_defs.sh"
+    m = re.search(r"^_GRIMOIRE_RULE_TTL=(\d+)", DEFS.read_text(), re.M)
+    assert m, "_GRIMOIRE_RULE_TTL is gone from grimoire_defs.sh"
     return int(m.group(1))
 
 
 def _live(ledger: Path) -> list[str]:
-    """`scribe_rules_live` against a real ledger, as the hooks call it."""
+    """`grimoire_rules_live` against a real ledger, as the hooks call it."""
     for tool in ("bash", "awk"):
         if shutil.which(tool) is None:
             pytest.skip(f"hook runtime tool {tool!r} not installed")
     proc = subprocess.run(
-        ["bash", "-c", f'. "{DEFS}"; scribe_rules_live "{ledger}"'],
+        ["bash", "-c", f'. "{DEFS}"; grimoire_rules_live "{ledger}"'],
         capture_output=True, text=True, timeout=30,
         env={"PATH": os.environ["PATH"]},  # no credentials — see the docstring
     )
@@ -119,7 +119,7 @@ def test_a_repeatedly_surfaced_rule_appears_once_in_the_exclusion_list(tmp_path)
         f"exclusion list, in first-seen order"
     )
     raw = subprocess.run(
-        ["bash", "-c", f'. "{DEFS}"; scribe_rules_live "{ledger}"'],
+        ["bash", "-c", f'. "{DEFS}"; grimoire_rules_live "{ledger}"'],
         capture_output=True, text=True, timeout=30,
         env={"PATH": os.environ["PATH"]},
     ).stdout.strip()
@@ -142,7 +142,7 @@ def test_a_rule_that_ages_out_and_returns_does_not_ping_pong(tmp_path):
     _write_ledger(ledger, [("156", ttl + 600)])
 
     subprocess.run(
-        ["bash", "-c", f'. "{DEFS}"; printf \'156\\n\' | scribe_rules_append "{ledger}"'],
+        ["bash", "-c", f'. "{DEFS}"; printf \'156\\n\' | grimoire_rules_append "{ledger}"'],
         capture_output=True, text=True, timeout=30,
         env={"PATH": os.environ["PATH"]},
     )
@@ -198,7 +198,7 @@ def test_both_hooks_read_the_ledger_through_the_shared_helper():
     stops calling the helper but still ages correctly some other way is not a
     defect, and a rename of the helper is not one either.
     """
-    for name in ("scribe_prior_art.sh", "scribe_tool_rules.sh"):
+    for name in ("grimoire_prior_art.sh", "grimoire_tool_rules.sh"):
         src = (PLUGIN / name).read_text()
         rule_reads = [
             ln for ln in src.splitlines()
@@ -210,7 +210,7 @@ def test_both_hooks_read_the_ledger_through_the_shared_helper():
             f"ageing, and the two would disagree silently about which rules "
             f"this session still holds."
         )
-        assert "scribe_rules_live" in src, (
+        assert "grimoire_rules_live" in src, (
             f"{name} no longer reads the rule ledger through the shared "
             f"helper, so the two hooks can drift on the ledger format"
         )