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 justnau1020/claude-os --skill doc-architecturegit clone --depth 1 https://github.com/justnau1020/claude-osWrote 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/justnau1020/claude-os/doc-architecture)<a href="https://agentmods.dev/skills/justnau1020/claude-os/doc-architecture"><img src="https://agentmods.dev/badge/skills/justnau1020/claude-os/doc-architecture/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/justnau1020/claude-os/doc-architecture"><img src="https://agentmods.dev/badge/skills/justnau1020/claude-os/doc-architecture.svg" alt="Reviewed on agentmods" width="80" 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 | $0.00030 | $0.00265 |
| Opus 5.5 | $0.00012 | $0.00106 |
| Sonnet 5.5 | $0.00006 | $0.00053 |
| Haiku 4.5 | $0.00003 | $0.00026 |
Grade A, and why
doc-architecture 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 1mo 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.
What it actually says
Update Architecture Documentation
Update the project's architecture documentation to reflect recent code changes.
Steps
1. Review recent changes
git diff HEAD~5 --stat
git log --oneline -10
2. Read current architecture doc
Read the architecture documentation in full. Common locations:
docs/ARCHITECTURE.mddocs/architecture/ARCHITECTURE.md
3. Identify gaps
Compare the code changes against the architecture doc:
- Are new modules documented?
- Are changed interfaces reflected?
- Are removed features cleaned up?
- Are new invariants captured?
- Are new dependencies mentioned?
4. Update the doc
Make targeted updates to the architecture documentation:
- Add sections for new components
- Update descriptions for changed components
- Remove references to deleted components
- Keep the existing structure and tone
5. Verify accuracy
Cross-reference updated doc against actual code to ensure accuracy. The architecture doc is the source of truth -- it must be correct.
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.
- 1mo ago First seen · 48 lines · 30 tokens per session scan A db7da1e1de45
doc-architecture is a skill published in the GitHub repository justnau1020/claude-os (3 stars, last pushed 6mo ago), licensed Apache-2.0. It adds 30 tokens to every session and 265 once invoked, about $0.0001 per session on Opus 5.5. 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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