Cover the Kiro steering file in the equality check (the stripper is now shared, renamed to stripFrontmatter), and align its body with AGENTS.md: the 'Not lazy about' and 'Non-trivial logic' sentences were split into two paragraphs where the canonical body and the other four copies keep them as one. The improved check caught this on the freshly merged #6.
Also add a small invariant canary: four load-bearing rule phrases must appear verbatim in both SKILL.md (the runtime source of truth) and AGENTS.md, catching a rule that lands in one but not the other even though the two files are intentionally different lengths.
Verified: passes on main, exits 1 when a copy diverges or an invariant goes missing.
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
Adds the Codex adapter: marketplace.json, .codex-plugin/plugin.json,
declarative hooks.json with Windows command variants, and a shared
hooks/ponytail-runtime.js that switches state path and output format
between Claude and Codex (gated on PLUGIN_DATA, so the Claude path is
unchanged). Bumps plugin version to 4.1.0 and ships tests/hooks.test.js.
README adapters block resolved to keep the Codex @ponytail invocation note
together with Kiro (#6) and the drift-check Development section (#3).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Six no-skill control arms re-run through the same harness so all three
arms share one model. README Numbers section and chart now cite the
complete dataset: -47% tokens, 3x faster, 490 vs 3,629 LOC, extension
96 vs 1,115 lines, probes green everywhere. Em dashes removed.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Probes 8/8 + 6/6 both arms, LOC 490 vs 1440, extension cost 41/55 vs
156/257, all six v4 arms ship a runnable check with no bloat creep.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Hardening per the A-F benchmark brief: non-trivial logic leaves one
runnable check; ponytail: comments on ceiling-bearing shortcuts name
the ceiling and upgrade path; prefer the edge-case-correct stdlib
option at equal size. Applied to SKILL.md, all cross-agent rule
copies, the hook fallback, and a guard line in ponytail-review.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
