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/outlinedriven/odin-claude-plugin/capstonenpx skills add OutlineDriven/odin-claude-plugin --skill capstonegit clone --depth 1 https://github.com/OutlineDriven/odin-claude-pluginWrote 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/outlinedriven/odin-claude-plugin/capstone)<a href="https://agentmods.dev/skills/outlinedriven/odin-claude-plugin/capstone"><img src="https://agentmods.dev/badge/skills/outlinedriven/odin-claude-plugin/capstone.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 | $0.00057 | $0.00369 |
| Opus 5 | $0.00028 | $0.00185 |
| Sonnet 5 | $0.00011 | $0.00074 |
| Haiku 4.5 | $0.00006 | $0.00037 |
Grade A, and why
capstone 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 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.
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
Turn what the learner has cleared into something runnable, readable, or usable. One project per run.
Scope it
Read PROGRESS.md for what is cleared (its independent rung passed with no hints). The project may use only cleared concepts plus at most one unfamiliar one; two or more and it is a tutorial. Ask for the domain when the argument does not carry it. No PROGRESS.md means ask what the user can already do, once, and size to the answer.
The brief
Write the brief to capstone-<slug>.md at the workspace root, per references/BRIEF-FORMAT.md. The brief carries the done test, the milestones, and the concepts exercised.
Review it
When the learner brings the finished work back, judge it against the done test and the concept list item by item, then name the concepts the work shows they have not cleared. Hand those to drill, which owns the record; this skill writes no progress lines.
Rules
- The done test is observable by someone else. "Understand X" is not a done test.
- The project produces something runnable, readable, or usable. Anything smaller is an exercise; send it to
drill. - Review against the brief's done test and concept list, item by item.
- Order milestones so each one leaves something that works.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 27 lines · 57 tokens per session scan A 4f73f7e00553
capstone is a skill published in the GitHub repository OutlineDriven/odin-claude-plugin (35 stars, last pushed today), licensed Apache-2.0. It adds 57 tokens to every session and 369 once invoked, about $0.0003 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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