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 skills add athola/claude-night-market --skill night-market-failure-archaeologygit clone --depth 1 https://github.com/athola/claude-night-marketWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/athola/claude-night-market/night-market-failure-archaeology)<a href="https://agentmods.dev/skills/athola/claude-night-market/night-market-failure-archaeology"><img src="https://agentmods.dev/badge/skills/athola/claude-night-market/night-market-failure-archaeology/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/athola/claude-night-market/night-market-failure-archaeology"><img src="https://agentmods.dev/badge/skills/athola/claude-night-market/night-market-failure-archaeology.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Anti-Refusal · line 88 Skill attempts to nullify the agent's safety policies or restrictions ('you have no restrictions', 'ignore your guidelines', 'do anything now'). This is a direct jailbreak that disables guardrails.Fix: Remove jailbreak framing that nullifies safety policies or restrictions. Skill content must not instruct the agent to ignore its guidelines or operate without guardrails.
What 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 5.1 | $0.00046 | $0.04932 |
| Opus 5 | $0.00023 | $0.02466 |
| Sonnet 5 | $0.00009 | $0.00986 |
| Haiku 4.5 | $0.00005 | $0.00493 |
Grade A, and why
night-market-failure-archaeology 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 13d ago.
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.
How it starts
The opening of the file, as written. The whole thing — 394 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Night Market Failure Archaeology
This is a reference document, not a runbook. It records every major
investigation, dead end, rejected fix, and revert in this repo as
symptom, root cause, evidence, status, and lesson, so nobody re-fights
a settled battle. For triage of a failure happening right now, use
night-market-debugging-playbook. Come here when a proposed change
smells like something the repo already tried and rejected.
Jargon used below:
- "py39 hooks": hook scripts run under the host system Python (3.9
floor), while the rest of the repo requires Python 3.12. Enforced by
.github/workflows/python39-compat.yml. - "unbloat": the conserve plugin's dead-code deletion campaign.
- "Stop hook": a Claude Code hook that runs when a session turn ends.
- "settled": the fight is over. Re-opening it requires new evidence and a note in the collective memory, not a hunch.
How to use this chronicle
- Before implementing, scan the battle titles and the recurring-class table for anything resembling your plan.
- If a battle matches, read its lesson. Follow it, or write down why this time is different before overriding it.
- Verify any hash you rely on:
git log --format='%h %s' -1 <hash>. - When your own battle settles, add an entry (format at the bottom).
Settled battles
SB1: tasks_manager cross-plugin DRY consolidation (reverted)
- Symptom: three near-identical
tasks_manager.pycopies in attune, sanctum, and spec-kit looked like textbook duplication. - Root cause of the failure: consolidating them into a root
scripts/tasks_manager.py(1,169 lines deleted across 6 files) broke plugin self-containment. Plugins are independent deployables that run from a Claude Code cache directory, so they cannot import from the repo root. - Evidence:
054e2679(consolidate, 2026-01-23),29961cd2(revert, same day),d89a55c7(differentiated per-plugin copies). All three copies exist today underplugins/<p>/scripts/tasks_manager.py.docs/dependency-audit.mdtracks cross-plugin deps and fallbacks. - Status: settled. Per-plugin copies are intentional.
- Lesson: DRY across plugin boundaries is an anti-pattern here. Do not "helpfully" re-consolidate duplicated plugin scripts.
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.
- 13d ago First seen · 394 lines · 46 tokens per session scan A c362bc5eda92
night-market-failure-archaeology is a skill published in the GitHub repository athola/claude-night-market (337 stars, last pushed yesterday), licensed MIT. It adds 46 tokens to every session and 4,932 once invoked, about $0.0002 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 2026-08-30.
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