lessons

lessons is a skill for Claude Code from saeedkolivand/ai-job-hunter-app. It costs 45 tokens per session (465 once invoked), scanned A, original, Apache-2.0.

A shared method for proposing and looking up lessons learned from past work. Only the project steward saves these lessons as lasting project memory.

In plain words
What is it for?
It helps agents record durable discoveries for review and query earlier project experience during a task.
Why use it?
It prevents every agent from changing shared memory and gives agents a consistent way to reuse experience without silently persisting it.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is node .claude/hooks/lessons.mjs query --domain export.

Good fit It helps agents record durable discoveries for review and query earlier project experience during a task.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/saeedkolivand/ai-job-hunter-app
agentmods
npx agentmods add skills/saeedkolivand/ai-job-hunter-app/lessons

Made for: Claude Code.

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 lessons

README.md
[![agentmods](https://agentmods.dev/badge/skills/saeedkolivand/ai-job-hunter-app/lessons/github.svg)](https://agentmods.dev/skills/saeedkolivand/ai-job-hunter-app/lessons)
Your own site
<a href="https://agentmods.dev/skills/saeedkolivand/ai-job-hunter-app/lessons"><img src="https://agentmods.dev/badge/skills/saeedkolivand/ai-job-hunter-app/lessons/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for lessons

Your own site · 80×15
<a href="https://agentmods.dev/skills/saeedkolivand/ai-job-hunter-app/lessons"><img src="https://agentmods.dev/badge/skills/saeedkolivand/ai-job-hunter-app/lessons.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 465 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00045 $0.00465
Opus 5 $0.00023 $0.00233
Sonnet 5 $0.00009 $0.00093
Haiku 4.5 $0.00005 $0.00047

Measured 7d ago against content hash 86fe4d9c4750, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

lessons 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 7d 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.

.claude/skills/lessons/SKILL.md · 37 lines

What it actually says

Lessons — distilled experiential memory

Store: .claude/memory/lessons.jsonl (local, capped 200, archived on overflow). Only project-steward writes.

Query (any agent, on-demand)

node .claude/hooks/lessons.mjs query --domain export
node .claude/hooks/lessons.mjs query --category Performance
node .claude/hooks/lessons.mjs query --text "pagination"

Returns only matching ≤5-line lessons — never bulk-loaded. The review-gate auto-queries by touched domain/globs and folds matches into its prompt.

Propose (any agent)

Surface as: LESSON · <category> · Context: … · Decision: … · Outcome: … (≤5 lines). project-steward dedupes & persists.

Tag the memory type in --tags — a free-form convention (not enforced by lessons.mjs), following the 2026 agent-memory taxonomy: episodic (a specific past event/fix), semantic (a durable fact/convention), or procedural (a workflow / review convention / test command / tool-use habit). Procedural lessons are the highest-leverage — capture "how we do X here."

Categories (exactly one)

Architecture decision · Failed approach · Proven approach · Performance · Security · ATS · Scraping · AI-provider · Export · Testing discovery.

Rules

  • Distilled lessons only — never raw conversations / task-histories / review-outputs.
  • Context · Decision · Outcome, ≤5 lines.
  • Dedupe on add; cap 200 active; archive the rest.
  • An Architecture-decision lesson that graduates to an ADR (docs/knowledge/decision-records/) is removed from the log — the ADR becomes its single source.
  • Context priority stays: graphify → source → docs/knowledge → 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. 7d ago First seen · 37 lines · 45 tokens per session scan A 86fe4d9c4750

Subscribe to this mod's changes

lessons is a skill published in the GitHub repository saeedkolivand/ai-job-hunter-app (54 stars, last pushed today), licensed Apache-2.0. It adds 45 tokens to every session and 465 once invoked, about $0.0002 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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