Agent skill

Improve Skill

by aiskillstore in aiskillstore/marketplace

Analyze coding agent session transcripts to improve existing skills or create new ones.

No licenceAuto-check passed

Install Improve Skill

skills CLI
$ npx skills add aiskillstore/marketplace --skill improve-skill -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install aiskillstore/marketplace improve-skill --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/aiskillstore/marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/dwsy/improve-skill .claude/skills/improve-skill && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
improve-skill
GitHub stars
430
Token cost
~1.2k tokens
SKILL.md length
273 words
Files
3 (incl. scripts)
Skills in repo
1,108
Repo updated
First seen
Licence
None found

At a glance

Analyze coding agent session transcripts to improve existing skills or create new ones.

  • Works in 3 steps: Extract the session transcript → Find the existing skill in one of these… → Generate an improvement prompt for a new…
  • Asked to improve a skill based on a session
  • SKILL.md covers Quick Start, Session Extraction, Workflow: Improve an Existing… and Workflow: Create a New Skill, plus 2 more sections
  • Runs JavaScript scripts from its folder

What it does

Improve Skill is an agent skill from aiskillstore/marketplace. Analyze coding agent session transcripts to improve existing skills or create new ones. Use when asked to improve a skill based on a session, or extract a new skill from session history.

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 3 other files, including scripts (for example `scripts/extract-session.js` and `skill-report.json`).

The repository describes itself as: Security-audited skills for Claude, Codex & Claude Code. One-click install, quality verified.

When your agent uses it

  • Asked to improve a skill based on a session
  • Extract a new skill from session history

Example prompts

  • “/improve-skill”

Requirements

  • Node.js

Workflow steps

3 steps, taken from the first numbered list in SKILL.md.

  1. Extract the session transcript
  2. Find the existing skill in one of these locations
  3. Generate an improvement prompt for a new session

What it can do on your machine

Read from SKILL.md and the folder at commit ad8daf7. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships 1 file in scripts/ (JavaScript), which the agent can run.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Improve Skill loads about 1.2k tokens when it runs. Until then it costs about 50 tokens; SKILL.md has 273 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~50
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 273 words (~1,230 tokens).

“This skill helps analyze coding agent sessions to improve or create skills. It works with Claude Code, Pi, and Codex session files.”

— opening of SKILL.md by aiskillstore
name
improve-skill

Read the full SKILL.md on GitHub

Files

SKILL.md and 2 other files (scripts) in skills/dwsy/improve-skill of aiskillstore/marketplace.

  • SKILL.md
  • scripts/extract-session.js
  • skill-report.json

Open the folder on GitHubat commit ad8daf7

Compare with similar skills

Improve Skill next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Improve Skill compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Improve Skill this skillaiskillstore/marketplace430—~1.2kAutomated safety check: PassNone
Baoyu Youtube TranscriptJimLiu/baoyu-skills26k1 repos~2.4kAutomated safety check: PassMIT
Youtube Transcriptbrowser-act/skills6.1k—~2.1kAutomated safety check: PassMIT
Transcription0xsline/OpenChatCut2.2k1 repos~1.1kAutomated safety check: PassAGPL-3.0
Youtube Transcript Skillssickn33/agentic-awesome-skills47k1 repos~1.2kAutomated safety check: PassMIT
Video Transcriptsudecode/plate17k—~1.5kAutomated safety check: PassCustom licence

Similar skills

  • Baoyu Youtube Transcript

    JimLiu/baoyu-skills

    Downloads YouTube video transcripts/subtitles and cover images by URL or video ID.

    26k GitHub starsUsed in 1 repo~2.4k tokens
    Media & CreativeAuto-check passed
  • Youtube Transcript

    browser-act/skills

    YouTube transcript extraction and content reformatting: given a YouTube video URL, opens the video's transcript panel, extracts all timestamped segments, and transforms the raw transcript into…

    6.1k GitHub stars~2.1k tokensUpdated 1 mo ago
    Knowledge ManagementAuto-check passed
  • Transcription

    0xsline/OpenChatCut

    A skill your agent uses when a video/audio task needs OpenChatCut transcription, captions, subtitles, subtitle styling, transcript search, transcript readiness checks, or enabling captions…

    2.2k GitHub starsUsed in 1 repo~1.1k tokens
    Media & CreativeAuto-check passed
  • Youtube Transcript Skills

    sickn33/agentic-awesome-skills

    Fetch YouTube video transcripts, search videos/channels, browse channels, and extract playlists via the getyoutubetranscript.com API - free tier, no card required.

    47k GitHub starsUsed in 1 repo~1.2k tokens
    Knowledge ManagementAuto-check passed
  • Video Transcripts

    udecode/plate

    Generate structured video transcripts from local files or video URLs using Gemini Files API.

    17k GitHub stars~1.5k tokensUpdated today
    Knowledge ManagementAuto-check passed
  • Video Transcript Downloader

    steipete/agent-scripts

    yt-dlp downloads: video, audio, subtitles, transcripts, clips, playlists.

    7.3k GitHub stars~558 tokensUpdated 4 days ago
    Media & CreativeAuto-check passed

More from aiskillstore/marketplace

All 1,108 skills in this repo
  • Code Stats

    aiskillstore/marketplace

    Analyze codebase with tokei (fast line counts by language) and difft (semantic AST-aware diffs).

    430 GitHub starsUsed in 2 repos~697 tokens
    Auto-check: notes
  • File Search

    aiskillstore/marketplace

    Modern file and content search using fd, ripgrep (rg), and fzf.

    430 GitHub starsUsed in 2 repos~598 tokens
    Auto-check: notes
  • Data Processing

    aiskillstore/marketplace

    Process JSON with jq and YAML/TOML with yq. An agent skill from aiskillstore/marketplace.

    430 GitHub starsUsed in 1 repo~720 tokens
    Auto-check: notes
  • Doc Scanner

    aiskillstore/marketplace

    Scans for project documentation files (AGENTS.md, CLAUDE.md, GEMINI.md, COPILOT.md, CURSOR.md, WARP.md, and 15+ other formats) and synthesizes guidance.

    430 GitHub starsUsed in 1 repo~644 tokens
    Auto-check: notes
  • Find Replace

    aiskillstore/marketplace

    Modern find-and-replace using sd (simpler than sed) and batch replacement patterns.

    430 GitHub starsUsed in 1 repo~527 tokens
    Auto-check: notes
  • Investigating Codebases

    aiskillstore/marketplace

    Automatically activated when user asks how something works, wants to understand unfamiliar code, needs to explore a new codebase, or asks questions like "where is X implemented?", "how does Y…

    430 GitHub starsUsed in 1 repo~2.7k tokens
    Auto-check: notes

Questions about Improve Skill

What does Improve Skill do?

Analyze coding agent session transcripts to improve existing skills or create new ones. Improve Skill is an agent skill from aiskillstore/marketplace. Analyze coding agent session transcripts to improve existing skills or create new ones.

When should I use Improve Skill?

Improve Skill fits situations like: asked to improve a skill based on a session; extract a new skill from session history.

How do I install Improve Skill in Claude Code?

Run `npx skills add aiskillstore/marketplace --skill improve-skill -a claude-code`. Or copy the skill folder (skills/dwsy/improve-skill in aiskillstore/marketplace) into .claude/skills/improve-skill in your project. Claude Code loads it when a task matches its description.

How do I install Improve Skill in Codex?

Run `npx skills add aiskillstore/marketplace --skill improve-skill -a codex`. Or copy the skill folder (skills/dwsy/improve-skill in aiskillstore/marketplace) into .agents/skills/improve-skill in your project. Codex loads it when a task matches its description.

Can I use Improve Skill in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add aiskillstore/marketplace --skill improve-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/improve-skill, .gemini/skills/improve-skill, .github/skills/improve-skill and .opencode/skills/improve-skill in your project.

What does Improve Skill need to run?

Going by SKILL.md and its folder, Improve Skill needs JavaScript for the scripts in its folder. Our summary lists: Node.js.

Does Improve Skill access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Improve Skill safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Improve Skill use?

No licence was found for Improve Skill or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Improve Skill use?

About 1.2k tokens (SKILL.md is roughly 4.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Improve Skill?

Skills that share tags, products or a category with Improve Skill: Baoyu Youtube Transcript (JimLiu/baoyu-skills, 26k stars), Youtube Transcript (browser-act/skills, 6.1k stars), Transcription (0xsline/OpenChatCut, 2.2k stars) and Youtube Transcript Skills (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Improve Skill?

aiskillstore (a GitHub organization) maintains it in aiskillstore/marketplace, which has 430 GitHub stars. The repository holds 1,108 skills in this directory. The repository was last updated on October 7, 2026.

Source: aiskillstore/marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.