Agent skill

Skill Selector

by mizchi in mizchi/skills

Meta-skill for picking project skills via APM. An agent skill from mizchi/skills.

No licenceAuto-check passedDevOps & Cloud

Install Skill Selector

skills CLI
$ npx skills add mizchi/skills --skill skill-selector -a claude-code

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

GitHub CLI
$ gh skill install mizchi/skills skill-selector --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/mizchi/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skill-selector .claude/skills/skill-selector && 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
skill-selector
GitHub stars
359
Token cost
~2.8k tokens
SKILL.md length
1,494 words
Files
7 (incl. references)
Skills in repo
69
Repo updated
First seen
Licence
None found

At a glance

Meta-skill for picking project skills via APM. An agent skill from mizchi/skills.

  • Works in 2 steps: Curated catalog → Search and evaluate (delegated to…
  • Explicitly asks to set up apm.yml
  • SKILL.md covers When to use, Phase 1 — Curated catalog, Phase 2 — Search and evaluate… and Phase boundary — do not blur, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Skill Selector is an agent skill from mizchi/skills. Meta-skill for picking project skills via APM. Invoke ONLY when the user explicitly asks to set up apm.yml, choose which skills a project needs, or evaluate a catalog match — do NOT auto-invoke on routine project-init or apm-management tasks. Two-phase: pick from a curated catalog first; only escalate to broader search/evaluation when the catalog has no fit. Avoids the failure mode of impulse-installing skills you never use or hand-searching GitHub when a vetted answer already exists.

Its SKILL.md is about 2.8k tokens, which your agent loads only when the skill is triggered. The skill folder holds 9 other files, including reference files (for example `README.md`, `evals/eval.yaml` and `evals/ledger.yaml`).

It sits in DevOps & Cloud, covering Monitoring and alerting. It works with GitHub. The repository describes itself as: Agent skills by mizchi, distributed via APM.

When your agent uses it

  • Explicitly asks to set up apm.yml
  • Choose which skills a project needs
  • Evaluate a catalog match — do NOT auto-invoke on routine project-init
  • Apm-management tasks

Example prompts

  • “/skill-selector”

Workflow steps

2 steps, taken from the step headings in SKILL.md.

  1. Curated catalog
  2. Search and evaluate (delegated to skill-finder)

What it can do on your machine

Read from SKILL.md and the folder at commit 62f5808. 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

    No scripts in the folder and no shell commands in SKILL.md.

    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

Skill Selector loads about 2.8k tokens when it runs, and up to ~8.8k if it reads all its reference files. Until then it costs about 126 tokens; SKILL.md has 1,494 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~126
When it runs · the whole SKILL.md, loaded when a task matches
~2.8k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~8.8k

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); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 1,494 words (~2,761 tokens).

“Adding a skill is cheap on disk and not free in context. Pick deliberately.”

— opening of SKILL.md by mizchi
name
skill-selector

Read the full SKILL.md on GitHub

Files

SKILL.md and 6 other files (references) in skill-selector of mizchi/skills.

  • SKILL.md
  • README.md
  • evals/eval.yaml
  • evals/ledger.yaml
  • evals/tasks/scenario-a-typescript-init.yaml
  • evals/tasks/scenario-b-edge.yaml
  • references/catalog.md

Open the folder on GitHubat commit 62f5808

Compare with similar skills

Skill Selector 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.

Skill Selector compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Skill Selector this skillmizchi/skills359—~2.8kAutomated safety check: PassNone
Autopilot Issue Delivery Workermicrosoft/apm4k—~1.7kAutomated safety check: PassMIT
Tool ConnectorZhixiangLuo/10xProductivity478—~925Automated safety check: PassMIT
Golang Samber Hotsamber/cc-skills-golang3.4k—~2kAutomated safety check: PassMIT
Admingrafana/skills281—~1.5kAutomated safety check: PassApache-2.0
Autopilot Commentmicrosoft/apm4k—~883Automated safety check: PassMIT

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Works with

Questions about Skill Selector

What does Skill Selector do?

Meta-skill for picking project skills via APM. An agent skill from mizchi/skills. Skill Selector is an agent skill from mizchi/skills. Meta-skill for picking project skills via APM.

When should I use Skill Selector?

Skill Selector fits situations like: explicitly asks to set up apm.yml; choose which skills a project needs; evaluate a catalog match — do NOT auto-invoke on routine project-init; apm-management tasks.

How do I install Skill Selector in Claude Code?

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

How do I install Skill Selector in Codex?

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

Can I use Skill Selector 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 mizchi/skills --skill skill-selector -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/skill-selector, .gemini/skills/skill-selector, .github/skills/skill-selector and .opencode/skills/skill-selector in your project.

What does Skill Selector need to run?

SKILL.md names no scripts, command-line tools or credentials: Skill Selector is instructions for the agent only.

Does Skill Selector 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 Skill Selector 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. Review the folder before installing.

What licence does Skill Selector use?

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

How many tokens does Skill Selector use?

About 2.8k tokens (SKILL.md is roughly 11k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 6k tokens, read only when the agent opens those files.

What are the alternatives to Skill Selector?

Skills that share tags, products or a category with Skill Selector: Autopilot Issue Delivery Worker (microsoft/apm, 4k stars), Tool Connector (ZhixiangLuo/10xProductivity, 478 stars), Golang Samber Hot (samber/cc-skills-golang, 3.4k stars) and Admin (grafana/skills, 281 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Skill Selector?

mizchi (a GitHub user) maintains it in mizchi/skills, which has 359 GitHub stars. The repository holds 69 skills in this directory. The repository was last updated on October 2, 2026.

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