session-learn

A meta-skill that examines past coding-agent sessions to find repeated workflows, mistakes, corrections, and useful persistent facts.

In plain words
What is it for?
Reviewing session history, classifying patterns, and deciding what belongs in new skills, CLAUDE.md rules, or MEMORY.md.
Why use it?
It helps turn recurring lessons into reusable skills, project rules, or memory entries instead of rediscovering them each session.

Skill for Claude CodeCodex

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

Made for: Claude Code, Codex.

Per session 89 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,105 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 $0.00089 $0.01105
Opus 5 $0.00044 $0.00553
Sonnet 5 $0.00018 $0.00221
Haiku 4.5 $0.00009 $0.00111

Measured 3d ago against content hash 111fb4de034b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

session-learn scanned grade B with 1 finding 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 3d 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.

Enumerates other installed skillsmediumAgent snooping

Other skills' SKILL.md files reveal prompts, capabilities and secrets that should be invisible to peers.

ls ~/.claude/skills/
claude/skills/session-learn/SKILL.md · 136 lines

How it starts

The opening of the file, as written. The whole thing — 136 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Session Learn

Analyzes past session transcripts and extracts actionable improvements: recurring workflows that should become skills, corrections that should become CLAUDE.md rules, persistent facts for MEMORY.md, and gaps in existing skills.

Phase 1: Gather Data

Run these in parallel:

# List recent sessions
session-recall --list 20

# Cross-session error/correction/retry analysis
session-recall --all 10 --report

# Correction and constraint patterns
session-recall --all 10 "correction|wrong|mistake|don't|never|always|stop"

# Repeated workflow patterns
session-recall --all 10 "deploy|send|check|create|build|update|push"

Also invoke MCP tools if available (they give richer structured output):

  • recall_report - error/retry/correction analysis with stats
  • recall_decisions - key decisions across sessions
  • recall_search with keywords for targeted pattern search

Phase 2: Classify Each Finding

For each finding, assign exactly one category:

Category Threshold Target
Skill candidate 3+ occurrences across sessions New ~/.claude/skills/<name>/SKILL.md
CLAUDE.md rule 2+ occurrences, global constraint or correction Append to ~/.claude/CLAUDE.md
MEMORY.md entry Any count, persistent fact or preference Append to ~/.claude/projects/-root/memory/MEMORY.md or topic file
Existing skill update Any count, gap in current coverage Edit existing ~/.claude/skills/<name>/SKILL.md

Cross-reference against existing skills before proposing new ones:

ls ~/.claude/skills/

Read the description field of potentially overlapping skills to check for duplication before proposing a new skill.

Phase 3: Present Findings

Format the report as a table per category. Do NOT apply anything yet.

## Session Learning Report

### New Skill Candidates
| Workflow | Sessions seen | Current coverage gap | Proposed skill name |
|----------|--------------|----------------------|---------------------|
| ...      | ...          | ...                  | ...                 |

### New CLAUDE.md Rules
| Pattern observed | Evidence (sessions/count) | Proposed rule text |
|-----------------|--------------------------|-------------------|
| ...             | ...                       | ...               |

### MEMORY.md Updates
| Topic | Current state | Proposed addition |
|-------|--------------|-------------------|
| ...   | ...          | ...               |

### Existing Skill Improvements
| Skill | Gap found | Proposed change |
|-------|-----------|----------------|
| ...   | ...       | ...            |

Read the full file on GitHub · 136 lines

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. 3d ago First seen · 136 lines · 89 tokens per session scan B 111fb4de034b

Subscribe to this mod's changes

session-learn is a skill published in the GitHub repository floomhq/moto (32 stars, last pushed 2mo ago), licensed MIT. It adds 89 tokens to every session and 1,105 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it B with 1 finding (enumerates other installed skills). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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