learn

learn is a skill for Claude Code, Codex from godshiba/genesis. It costs 80 tokens per session (487 once invoked), scanned A, original, MIT.

A project-learning workflow reviews session records, recurring problems, decisions, and recent code history. It turns repeated lessons into project instructions or suggested improvements to shared templates.

In plain words
What is it for?
Use it to identify repeated landmines, inconvenient checks, undocumented conventions, and improvements worth adding to project guidance.
Why use it?
It helps prevent the same mistakes from recurring and records useful workflow changes where future work will see them.

Skill for Claude CodeCodex

Part of the genesis plugin — 10 skills, 3 agents shipped together

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/godshiba/genesis/learn
Any agent
npx skills add godshiba/genesis --skill learn
Clone the repo
git clone --depth 1 https://github.com/godshiba/genesis

Made for: Claude Code, Codex.

Or install genesis, the plugin that ships this one along with the rest of its 10 skills, 3 agents.

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 learn

README.md
[![agentmods](https://agentmods.dev/badge/skills/godshiba/genesis/learn.svg)](https://agentmods.dev/skills/godshiba/genesis/learn)
Your own site
<a href="https://agentmods.dev/skills/godshiba/genesis/learn"><img src="https://agentmods.dev/badge/skills/godshiba/genesis/learn.svg" alt="Measured on agentmods" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 487 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 $0.00080 $0.00487
Opus 5 $0.00040 $0.00244
Sonnet 5 $0.00016 $0.00097
Haiku 4.5 $0.00008 $0.00049

Measured 4d ago against content hash 1fedc15acbdd, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

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.

plugins/genesis/skills/learn/SKILL.md · 39 lines

What it actually says

/genesis:learn — Fold Lessons Back Into the System

GENESIS is designed to evolve. A rule a project repeatedly violates is wrong for that project; a pattern three projects repeat belongs in the template. This skill is the mechanism.

Steps

  1. Gather evidence. Read the project's registries — SESSION_LOG (what actually happened), LANDMINES (what surprised us), ISSUES (what recurred), DECISIONS (what we chose) — plus recent git history. Look for:

    • A landmine category that appeared 2+ times: candidate for a CLAUDE.md invariant or key pattern.
    • A gate that produced friction without payoff in this project: candidate for a recorded, deliberate deviation.
    • A convention followed in code but written nowhere: candidate for the CLAUDE.md Key Patterns section.
    • A workflow improvement any project would want: candidate for upstream.
  2. Classify each finding by destination:

    • Project-level: edit this project's CLAUDE.md (invariants, patterns, doc-sync map). Apply directly after listing the proposed edits.
    • Deviation: record in DECISIONS.md why this project bends a GENESIS rule. The rule stands elsewhere.
    • Upstream: belongs in the GENESIS plugin itself (templates, doctrine, a skill). The installed plugin is a read-only cache — do not edit it. Instead, produce the exact proposed diff against the plugin repo (https://github.com/godshiba/genesis) and offer to apply it if the user has a local clone, or format it as a PR-ready change.
  3. Report: findings, destination for each, and what was applied vs proposed. Keep it short — three strong findings beat ten weak ones. Zero findings is a valid result; say so rather than inventing lessons.

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. 4d ago First seen · 39 lines · 80 tokens per session scan A 1fedc15acbdd

Subscribe to this mod's changes

learn is a skill published in the GitHub repository godshiba/genesis (2 stars, last pushed 2mo ago), licensed MIT. It adds 80 tokens to every session and 487 once invoked, about $0.0004 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 2026-08-31.