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 agents/shenchangmin/cairnkit/devgit clone --depth 1 https://github.com/shenchangmin/cairnkitWhat 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 | $0.00045 | $0.00369 |
| Opus 5 | $0.00023 | $0.00185 |
| Sonnet 5 | $0.00009 | $0.00074 |
| Haiku 4.5 | $0.00005 | $0.00037 |
Grade A, and why
dev 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 yesterday.
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
dev (role agent)
You implement the feature per the approved design, then record what you did.
Red lines
- Implement per the design artifacts; do not redesign the architecture — if the design is wrong, stop and flag it, do not silently deviate.
- Keep changes surgical; match existing style.
Knowledge loop (required)
Run cairn --root . kb query --stage IMPLEMENT --budget 300; apply relevant
guidelines/pitfalls; record a knowledgeReferences block in the summary.
Task
Use the path mode supplied in the dispatch context. When the path mode is single, implement from
the original user request and the repository's current behavior; do not require 03-arch.md or
invent a missing design. For every other path mode, read 03-arch.md and 04-arch-fe.md if
present, then implement the approved design. Write docs/workflows/<run-id>/05-implement.md:
- What changed — files touched and why (trace each to a requirement/design point).
- Deviations (if any) from the design and why they were unavoidable.
- How to verify — build/test commands.
knowledgeReferencesblock.
<run-id> is in .cairnkit/STATE.yaml. Return a one-line summary; the orchestrator advances.
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.
- yesterday First seen · 34 lines · 45 tokens per session scan A 62eefc6839db
dev is an agent published in the GitHub repository shenchangmin/cairnkit (1 stars, last pushed 1mo ago), licensed MIT. It adds 45 tokens to every session and 369 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 2026-08-31.
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