autolearn

autolearn is a skill for Codex from OutlineDriven/outline-driven-development. It costs 55 tokens per session (4,420 once invoked), scanned A, original, Apache-2.0.

A learning-capture skill for recording verified, non-trivial fixes in solution documents or a CONCEPTS.md file.

In plain words
What is it for?
Use it after confirming a fix works, or to maintain solution notes and concept entries in a repository.
Why use it?
It prevents useful solutions from being lost after a bug is fixed. It can also refresh existing learning documents when they have drifted.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: mentions subagents.

Install

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.

agentmods
npx agentmods add skills/outlinedriven/outline-driven-development/autolearn
Any agent
npx skills add OutlineDriven/outline-driven-development --skill autolearn
Clone the repo
git clone --depth 1 https://github.com/OutlineDriven/outline-driven-development

Made for: Codex.

Wrote 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.

agentmods badge for autolearn

README.md
[![agentmods](https://agentmods.dev/badge/skills/outlinedriven/outline-driven-development/autolearn.svg)](https://agentmods.dev/skills/outlinedriven/outline-driven-development/autolearn)
Your own site
<a href="https://agentmods.dev/skills/outlinedriven/outline-driven-development/autolearn"><img src="https://agentmods.dev/badge/skills/outlinedriven/outline-driven-development/autolearn.svg" alt="Measured on agentmods" height="20"></a>
Per session 55 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,420 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00055 $0.04420
Opus 5 $0.00028 $0.02210
Sonnet 5 $0.00011 $0.00884
Haiku 4.5 $0.00006 $0.00442

Measured 2d ago against content hash 44a1f600846c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

autolearn 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 2d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/validate-frontmatter.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

.devin/skills/autolearn/SKILL.md · 241 lines

How it starts

The opening of the file, as written. The whole thing — 241 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Autolearn

Contract

Field Bound contract
Trigger A non-trivial fix has been verified (observed working, not hoped working), or explicit autolearn or refresh invocation.
Authority Reversible-local: write only the operating repo's docs/solutions/ and repo-root CONCEPTS.md. Rollback via git revert or file restore from history. No VCS push, credential, paid, published, deployed, or remote mutation.
Side effect Writes or refreshes docs/solutions/ learning docs and CONCEPTS.md; stages only the surfaces this skill wrote or edited.
Done A validated learning or concept entry exists, or an explicit determination that nothing qualifies.

Inputs

  • The verified fix or solved problem, from conversation history or codebase. Must be supplied or derivable from context.
  • Optional: mode:refresh [scope] to maintain existing docs; mode:headless for non-interactive operation.
  • Optional: an injected auto-memory block (supplementary context, not primary evidence).

Procedure

0. Route the mode

Strip mode: tokens from arguments before treating the remainder as context or scope.

  • Capture (default): document one solved problem into docs/solutions/.
  • Vocabulary capture: a durable, reusable project term surfaces; reconcile CONCEPTS.md.
  • Memory handoff: a fact about the user, preferences, or cross-project context surfaces; do not write it into docs/solutions/ or CONCEPTS.md; surface it as a memory-handoff candidate for the memory system to capture.
  • Refresh: maintain existing docs/solutions/ and CONCEPTS.md.
  • Headless: overlays any mode; skip all questions, never pause, apply safe actions, mark uncertain as stale.

Fire automatically on a trigger phrase ("that worked", "it's fixed", "working now", "problem solved", "verified the fix", "tests pass now", "build succeeds", "that approach failed") or after a verified non-trivial fix. Auto-firing is permission to evaluate, not permission to fabricate.

One run can do all three repo-scoped actions: write a learning doc, reconcile a concept, and flag a memory-handoff candidate.

Read the full file on GitHub · 241 lines

Files

What ships with it

6 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.

Changes

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.

  1. 2d ago First seen · 241 lines · 55 tokens per session scan A 44a1f600846c

Subscribe to this mod's changes

autolearn is a skill published in the GitHub repository OutlineDriven/outline-driven-development (52 stars, last pushed yesterday), licensed Apache-2.0. It adds 55 tokens to every session and 4,420 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 2026-09-03.

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