Cairn is an AI problem-solving engine that searches for a path from a known starting state to a defined goal in an unknown state space. It is used for tasks such as autonomous penetration testing, vulnerability research, mathematical proofs, and capture-the-flag challenges. The catalogue skill helps agents work with Cairn.
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/oritera/cairn/tsec-actionsnpx skills add oritera/Cairn --skill tsec-actionsgit clone --depth 1 https://github.com/oritera/CairnWrote 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/oritera/cairn/tsec-actions)<a href="https://agentmods.dev/skills/oritera/cairn/tsec-actions"><img src="https://agentmods.dev/badge/skills/oritera/cairn/tsec-actions.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00026 | $0.00187 |
| Opus 5 | $0.00013 | $0.00093 |
| Sonnet 5 | $0.00005 | $0.00037 |
| Haiku 4.5 | $0.00003 | $0.00019 |
Grade A, and why
tsec-actions scanned grade A with 1 finding 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 6d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
* 直接使用 `curl` 调 API，TSEC_SERVER_HOST 和 TSEC_AGENT_TOKEN 已存在于环境变量 The source is not reproduced here
Licensed AGPL-3.0
The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.
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.
- 6d ago First seen · 24 lines · 26 tokens per session scan A ecd78d7e4fb5
tsec-actions is a skill published in the GitHub repository oritera/Cairn (2,601 stars, last pushed 1mo ago), licensed AGPL-3.0. It adds 26 tokens to every session and 187 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
xray-suite
Playbook for Xray Suite scanner, crawlergo, and headless browser usage with safe request pacing.
exploitation
Controlled exploitation, false-positive elimination, and PoC writing standards.
pentest-tools
Tool selection policy for BearStrike based on target type, scan risk, and signal strength.
planning
Pre-execution planning and priority-scored task list before running tools.
research-notes
Practical bug bounty methodology notes derived from recent public security reports and training resources.
reporting
Reporting standards for single bug, full pentest, and recon-only outputs.