measuring-ai-proficiency: Skill for Claude Code

.claude/skills/learning-aggregator/SKILL.md

learning-aggregator is a skill for Claude Code from pskoett/measuring-ai-proficiency. It costs 85 tokens per session (3,434 once invoked), scanned A, original, MIT.

A skill that reads accumulated learning and error files, finds recurring patterns, and ranks which ones may deserve a lasting improvement. The .learnings directory is a project log of corrections, failures, requests, and related notes.

In plain words
What is it for?
It is for weekly reviews, pre-task checks, post-incident consolidation, and validating patterns marked as ready for promotion.
Why use it?
It turns a growing write-only log into a review that shows which problems keep returning.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is pskoett/measuring-ai-proficiency's own configuration. It tells Claude Code how to work on measuring-ai-proficiency itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything measuring-ai-proficiency configures →

Reuse

Borrowing it

Nothing to install: this file belongs to pskoett/measuring-ai-proficiency. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/pskoett/measuring-ai-proficiency/main/.claude/skills/learning-aggregator/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/pskoett/measuring-ai-proficiency

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 learning-aggregator

README.md
[![agentmods](https://agentmods.dev/badge/skills/pskoett/measuring-ai-proficiency/learning-aggregator/github.svg)](https://agentmods.dev/skills/pskoett/measuring-ai-proficiency/learning-aggregator)
Your own site
<a href="https://agentmods.dev/skills/pskoett/measuring-ai-proficiency/learning-aggregator"><img src="https://agentmods.dev/badge/skills/pskoett/measuring-ai-proficiency/learning-aggregator/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 learning-aggregator

Your own site · 80×15
<a href="https://agentmods.dev/skills/pskoett/measuring-ai-proficiency/learning-aggregator"><img src="https://agentmods.dev/badge/skills/pskoett/measuring-ai-proficiency/learning-aggregator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 85 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,434 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 $0.00085 $0.03434
Opus 5.5 $0.00034 $0.01374
Sonnet 5.5 $0.00017 $0.00687
Haiku 4.5 $0.00009 $0.00343

Measured 2mo ago against content hash ed22477d8cc6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

learning-aggregator 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 2mo 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/learning-aggregator/SKILL.md · 306 lines

How it starts

The opening of the file, as written. The whole thing — 306 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Learning Aggregator

Reads accumulated .learnings/ files across all sessions, finds patterns, and produces a ranked list of promotion candidates. This is the outer loop's inspect step.

Without this skill, .learnings/ is a write-only log. Patterns accumulate but nobody synthesizes them. The same gap resurfaces two weeks later because no one looked.

When to Use

  • Weekly cadence — scheduled or manual, review accumulated learnings
  • Before major tasks — check if the task area has known patterns
  • After a burst of sessions — consolidate findings from a sprint or incident
  • When self-improvement flags promotion_ready — verify the flag with full context

What It Produces

A gap report — a ranked list of patterns that have crossed (or are approaching) the promotion threshold, with evidence and recommended actions.

Step 1: Read All Learning Files

Read these files in .learnings/:

File Contains
LEARNINGS.md Corrections, knowledge gaps, best practices, recurring patterns
ERRORS.md Command failures, API errors, exceptions
FEATURE_REQUESTS.md Missing capabilities

Parse each entry's metadata:

  • Pattern-Key — the stable deduplication key
  • Recurrence-Count — how many times this pattern has been seen
  • First-Seen / Last-Seen — date range
  • Priority — low / medium / high / critical
  • Status — pending / promotion_ready / promoted / dismissed
  • Area — frontend / backend / infra / tests / docs / config
  • Related Files — which parts of the codebase are affected
  • Source — conversation / error / user_feedback / simplify-and-harden
  • Tags — free-form labels

Step 2: Group and Aggregate

Group entries by Pattern-Key. For each group:

  1. Sum recurrences across all entries with the same key
  2. Count distinct tasks — how many different sessions/tasks encountered this
  3. Compute time window — days between First-Seen and Last-Seen
  4. Collect all related files — union of all entries' file references
  5. Take highest priority across entries in the group
  6. Collect evidence — the Summary and Details from each entry

Read the full file on GitHub · 306 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. 2mo ago First seen · 306 lines · 85 tokens per session scan A ed22477d8cc6

Subscribe to this mod's changes

learning-aggregator is a skill published in the GitHub repository pskoett/measuring-ai-proficiency (13 stars, last pushed 3mo ago), licensed MIT. It adds 85 tokens to every session and 3,434 once invoked, about $0.0003 per session on Opus 5.5. 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.

Related

learning-aggregator compared with skills from other repositories

learning-aggregator next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
learning-aggregatorpskoett/measuring-ai-proficiencySkill133mo agoMITA85Claude Code
knowledge-ingestopenclaw/openclawSkill394kyesterdayMITA80Claude Code, Codex
mem0-oss-to-platformmem0ai/mem0Skill68k2d agoApache-2.0A217Claude Code, Codex
forgetasgeirtj/system_prompts_leaksSkill71k2d agoCC0-1.0A74Claude Code, Codex
Cortexdanielmiessler/LifeOSSkill20kyesterdayMITA184Claude Code
memoryopensquilla/opensquillaSkill7.1k6d agoApache-2.0A44Claude Code, Codex
ha-data-storesshiwenwen/hope-agentSkill1.9kyesterdayMITA115Claude Code, Codex