Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/matheusht/redthread/gap-checknpx skills add matheusht/redthread --skill gap-checkgit clone --depth 1 https://github.com/matheusht/redthreadWhat it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00019 | $0.00194 |
| Opus 5 | $0.00010 | $0.00097 |
| Sonnet 5 | $0.00004 | $0.00039 |
| Haiku 4.5 | $0.00002 | $0.00019 |
Grade A, and why
Implementation Gap Check scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Gap-Check Skill
Trigger condition:
You should execute this skill prior to submitting a complex implementation_plan.md for human review, or when the user explicitly requests an audit.
Executing the Gap Check:
Evaluate the proposed logic against the foundational models described in docs/AGENT_DECISION_TREE.md:
- Security / Red-Teaming Coverage: Does the mechanism rely purely on single-turn evaluation, or does it properly branch (e.g., TAP algorithm)?
- Evaluation Metrics: Is there an Auto-CoT JudgeAgent assigned to evaluate the results? If missing, the plan has a gap!
- Defense Pipeline: Will this output synthesize into dynamic guardrails, or is the loop artificially broken?
Generate a gap analysis report in the plan's Open Questions section targeting the user.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- today First seen · 19 lines · 19 tokens per session scan A 5f6b898c6366
Implementation Gap Check is a skill published in the GitHub repository matheusht/redthread (47 stars, last pushed 10d ago), licensed MIT. It adds 19 tokens to every session and 194 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.
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