volt: Q139 -- the TOOLS.md drift guard is a fast leg, not a sweep-only cell

docs/TOOLS.md

@@ -31,8 +31,8 @@ module docstring, flags from the tool's own `--help`, probe rows from
 | `reply_check.py` | does every reply file's own header agree with its own name? | `--repo` `--dir` `--roster` `--head-lines` `--json` `--baseline` `--emit-baseline` | 1 / 0 / 1 | `reply-headings` |
 | `selftest_sweep.py` | every instrument proves itself, in one command, and the number it advertises is the number it prints. | `--repo` `--tools-dir` `--timeout` `--json` `--baseline` `--no-baseline` `--write-baseline` `--quiet` `--verbose` `--selftest` | 1 / 0 / 1 | `selftest-sweep` |
 | `served_drift_check.py` | does the host actually serve the tree at this revision? | `--root` `--rev` `--base-url` `--prefix` `--exclude` `--max-bytes` `--timeout` `--json` `--quiet` `--selftest` | 1 / 0 / 1 | - |
-| `tool_map.py` | the instruments get a map, and the map is generated from the tree. | `--repo` `--rev` `--write` `--check` `--json` `--selftest` | 1 / 0 / 1 | - |
-| `verify.py` | the HOME the index gate did not have: one command, eleven legs, one exit code, and a row per leg so a partial run cannot look like a clean one. | `--repo` `--queue` `--index` `--checkin-day` `--fast` `--timeout` `--json` `--quiet` `--selftest` | 1 / 0 / 1 | - |
+| `tool_map.py` | the instruments get a map, and the map is generated from the tree. | `--repo` `--rev` `--write` `--check` `--json` `--selftest` | 1 / 0 / 1 | `tools-map` |
+| `verify.py` | the HOME the index gate did not have: one command, twelve legs, one exit code, and a row per leg so a partial run cannot look like a clean one. | `--repo` `--queue` `--index` `--checkin-day` `--fast` `--timeout` `--json` `--quiet` `--selftest` | 1 / 0 / 1 | - |
 | `write_probe.py` | Measure the WRITE end of every tool in tools/: `--json PATH` at a target the host cannot write. | `--repo` `--only` `--timeout` `--json` `--selftest` `--verbose` | 1 / 0 / 1 | `write-axis` |
 
 ## The gate
@@ -49,6 +49,7 @@ dropped by `--fast`.
 | `index-current` | `queue_index.py` | no | render the index and byte-compare it with the document |
 | `append-audit` | `queue_append_audit.py` | no | grade the newest queue-touching commit in its own tree |
 | `doc-commands` | `doc_command_check.py` | no | every command a tool's docstring tells a reader to run: its flags must be options that tool's --help accepts |
+| `tools-map` | `tool_map.py` | no | re-derive docs/TOOLS.md from this tree and byte-compare it with the document on disk -- the same drift guard the sweep runs, at ~6 s, on every run including --fast (Q138's residual) |
 | `selftest-sweep` | `selftest_sweep.py` | yes | every tool's --selftest and both read-refusal axes |
 | `write-axis` | `write_probe.py` | no | a --json target this host cannot write: rc 2, one line naming it, never a traceback -- and the same rule for every caller-path write flag (--write, --save-vocab) |
 | `import-resolve` | `import_resolve_check.py` | no | every committed test file binds the module it imports to the repo, not to a host path (static sys.path scan plus --import-probe) |