macOS ships bash 3.2 as /bin/bash, which `#!/usr/bin/env bash` resolves to
when no newer bash is on PATH. Two builtins the repo relies on do not exist
there, and both failed SILENTLY:
- `mapfile` in the three surgical-commit helpers left every array empty, so
the scope guards passed on nothing (fail-OPEN) and the commits degraded to
"nothing pending — no-op" while reporting success. deploy-commit.test.sh
went 4/16; memory and doc commits simply never happened.
- `declare -A` in the session-start hook errored on every session and left
each plugin cost at 0, so the passive-budget warning could never fire.
`_read_lines_into` is the portable equivalent of `mapfile`, space-safe and
resetting its target first — expanding a never-assigned array trips `set -u`
on bash < 4.4, which is how the empty arrays surfaced as "unbound variable".
Plugin costs move to a `case`.
source-scope.sh's header prescribed `mapfile` to its callers; it now shows
the read loop, and its own test plus run-reconcile.sh stop using the builtin.
deploy-commit 16/16, source-scope 34/34, run-reconcile 25 GREEN / 0 RED,
session-start stderr empty.
Deleted T4e + its coupled echo note in lib/tests/run-reconcile.sh and
the fixtures/real-state.snapshot it read — superseded by SPEC-08's T7,
which actually DRIVES the tree_clean/pushed/msg_committed oracles
instead of miming them via a static line-count regex. Closes J4-09
(WEAK+drift): T4e only counted fixture line-suffixes matching
`=(true|resolved|present)$`; the snapshot itself was stale
(BLK-009=open contradicted blockers-snapshot.md's already-resolved
status) and unowned, and the drift was inert (`=open` doesn't even
match the count regex) — the assertion could never have caught
anything.
Updated skills/reconcile/SKILL.md:53's hardcoded "20/20" claim to the
new total (unguarded file, same logical step, ordered after SPEC-08+
SPEC-10 per the report).
grep -c 'real-state.snapshot' lib/tests/run-reconcile.sh == 0
(verified). No red demo (deletion, per spec) — gate is the green run
+ that grep. GREEN: 25/25 passed, shellcheck clean.
New lib/tests/fixtures/decisions-snapshot.md (neutral name, LRN-077
style): carries a --help token (so reconcile_contradiction_candidates
still surfaces the BDR-001 ⇄ --help-chantier candidate against
todo-snapshot.md), a "one-line ticket" line, and representative
OUT-OF-SCOPE/DEFERRED/follow-up context. T3 and T5 in run-reconcile.sh
now read this fixture instead of the LIVE $MEM/decisions.md; deleted
the $MEM variable definition and its stale comment. Closes J4-10
(FIXTURE-DRIFT): T3/T5 were the last live-registry reads in this
suite (T2 was fixed in job3-B1) — any legitimate prune/reword of the
real decisions.md would have reded the suite for a reason unrelated
to the reconcile engine itself.
grep -c '$MEM' lib/tests/run-reconcile.sh == 0 (verified).
GREEN: real repo, 26/26 passed (all 4 T3 markers + T5 candidate found
via the fixture).
Red demo (per spec — no code mutation, this is a fixture-substitution
spec): lean scratch copy, pointed T3's decisions-arg at /dev/null
transiently → "one-line ticket" (the only marker living solely in the
decisions-side fixture, not in todo-snapshot.md) goes missing, RED;
the other 3 markers stay green (satisfied by todo-snapshot.md alone).
Proves the assertions actually read the fixture rather than passing
vacuously.
New T7 block in lib/tests/run-reconcile.sh (+6 assertions, 20→26):
a throwaway git repo under mktemp with a LOCAL BARE origin drives the
3 previously-unexercised oracles live: tree_clean (dirty→rc≠0, clean→
rc0), pushed (pushed to origin FIRST so origin/main exists — else
rev-list is vacuously empty — then rc0 when synced, rc≠0 once 1 ahead),
msg_committed (rc0 for a present commit message, rc≠0 for an absent
one). Closes J4-12 (DEGRADED, prerequisite of SPEC-09/10): these 3
oracles backed report-only /reconcile output with zero test coverage —
a silent inversion would mis-report open-work state.
Mutation (lean scratch copy — only lib/reconcile.sh + lib/tests/
run-reconcile.sh + its fixtures + .claude/memory/decisions.md, not the
whole repo/.git, per the /tmp-exhaustion lesson from SPEC-01/02/04):
inverted tree_clean's rc (`-z` → `-n` on the porcelain-status check;
the report's literal "--quiet → negated" wording doesn't match this
function's actual `[ -z ... ]` shape, so applied the equivalent
semantic inversion). RED: both T7a assertions fail (dirty reads as
clean and vice versa); T7b/T7c stay green, confirming the mutation is
localized. (T6a/b/c red in the lean copy too, expected — no real git
history / skills dir there — unrelated to the mutation.)
GREEN: real repo unmutated, 26/26 passed (T7 included).
skills/reconcile/SKILL.md:53 claimed "20/20, shellcheck clean" but the
suite read .claude/memory/blockers.md live, so closing BLK-009
(d1e7423) turned T2b/T2c red for a correct reason unrelated to the
engine. Froze a post-BLK-009 snapshot (lib/tests/fixtures/
blockers-snapshot.md) and pointed T2 at it instead of the live file —
same approach the other T1/T3/T4 fixtures already use. Updated T2b/T2c
expectations to match (BLK-009 resolved, open = {001,003}). Suite is
back to 20/20 GREEN, shellcheck clean, matching the skill's own claim.
$MEM/../skills resolved to .claude/skills/ (the LRN-042 parasite, removed
2026-06-30 by make plugin Step 8.5), not the real skills/. Green at build
time only because the parasite still existed — green-for-wrong-reason
(LRN-077 class); red ever since. Suite back to 20/20.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016zA3Qh2Q1QpcGXzXxKeDHR
/reconcile confronts declarative sources (TODO checkboxes, registry
statuses, ## Index) against real git/fs state and surfaces the gaps,
in 4 categories + contradiction candidates.
- lib/reconcile.sh: engine — body-only enumeration (never the Index),
git/fs oracles, BLK last-block-wins status, lexical deferral sweep,
contradiction candidates, pure reconcile_verdict kernel.
- lib/tests/run-reconcile.sh + fixtures (neutral-named): 20/20;
recursive-coherence T1 reds if the engine reads the Index (teeth).
- skills/reconcile/SKILL.md: thin orchestration + A/B/C write-back gate,
honest limits (lexical deferrals, contradictions surfaced not asserted).
- CLAUDE.md: Skill routing line.
Founding principle: never trust a declarative source as an oracle — the
skill practices what it preaches (tested). Built via writing-skills TDD.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01C6bUdvHnajCNzgVQefZowj
bmottin
Bastien Chanot