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/markmhendrickson/neotoma/learnnpx skills add markmhendrickson/neotoma --skill learngit clone --depth 1 https://github.com/markmhendrickson/neotomaWrote 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/markmhendrickson/neotoma/learn)<a href="https://agentmods.dev/skills/markmhendrickson/neotoma/learn"><img src="https://agentmods.dev/badge/skills/markmhendrickson/neotoma/learn.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 | $0.00003 | $0.00598 |
| Opus 5 | $0.00002 | $0.00299 |
| Sonnet 5 | $0.00001 | $0.00120 |
| Haiku 4.5 | $0.00000 | $0.00060 |
Grade A, and why
learn 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 4d 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 — 67 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Learn
Turn a behavior miss raised in chat into a permanent process improvement.
Use this skill when the user points out an omission, asks why something was not done, or requests stronger automatic behavior.
Goals
- Fix the immediate omission in the current turn.
- Prevent recurrence by updating the smallest durable artifact (rule, skill, or workflow doc).
- Apply the new guidance immediately in the same conversation.
Workflow
-
Capture the miss
- Record expected behavior, actual behavior, and impact.
- Identify whether this is a one-off mistake or a recurring workflow gap.
- Neotoma:
/learnruns in normal chat — the full MCP turn lifecycle (bounded retrieval → user-phase store → edits/tools → reply → closing store) applies even when the fix is a one-line doc or rule tweak; "short pass" is never a waiver (seedocs/developer/mcp/instructions.md[TURN LIFECYCLE]).
-
Choose the smallest durable artifact
- Rule: global repeated behavior.
- Skill: multi-step workflow behavior.
- Workflow doc/checklist: release/process quality gates.
- Hook/tooling: enforcement that should run automatically.
-
Implement focused guidance
- Add explicit trigger language (when behavior must run).
- Add explicit ordering (what must happen first/next).
- Add forbidden patterns for the observed failure mode.
- Keep changes minimal and reusable; avoid broad rewrites.
-
Validate and apply now
- Re-run the scenario that failed (or nearest equivalent).
- Perform the newly-required behavior in this chat before concluding.
-
Report outcome
- What changed.
- Why this artifact was chosen.
- What behavior is now enforced.
GitHub Release Pattern
When the miss is release-quality related (for example "release notes missed npm-impacting runtime changes"), do all of the following:
- Inspect commit range for the release tag (for example
vX.Y.(Z-1)..vX.Y.Z). - Classify changes into:
- npm package/runtime impact (
src/,package.json,package-lock.json,README.md,openapi.yaml) - docs/site/process-only impact
- npm package/runtime impact (
- Update GitHub release notes with an explicit NPM Package Impact section.
- Include clear "changed/not changed" statements for API surface artifacts (notably
openapi.yaml). - Verify by reading the release body after update.
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.
- 4d ago First seen · 67 lines · 3 tokens per session scan A db14c7acc7da
learn is a skill published in the GitHub repository markmhendrickson/neotoma (31 stars, last pushed yesterday), licensed MIT. It adds 3 tokens to every session and 598 once invoked, about $0.0000 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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