What is skill-selection?

A guide for deciding which coding-assistant skills a project should install and keep. It checks each skill against the project's technology, working rules, and team habits.

Selecting skills from an upstream repository, adding their files and links, updating project documentation, removing skills that are no longer needed, and checking the setup for mismatches.

It prevents projects from accumulating unused or conflicting instructions and keeps the skill list consistent with the files that are actually installed.

How philtzjp/live-connector configures Claude Code and Codex

Reuse

Borrowing it

Nothing to install: this file belongs to philtzjp/live-connector. 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/philtzjp/live-connector/main/.agents/skills/skill-selection/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/philtzjp/live-connector

Made for: Claude Code, Codex.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/philtzjp/live-connector/skill-selection.svg)](https://agentmods.dev/skills/philtzjp/live-connector/skill-selection)

Your own site

<a href="https://agentmods.dev/skills/philtzjp/live-connector/skill-selection"><img src="https://agentmods.dev/badge/skills/philtzjp/live-connector/skill-selection.svg" alt="Measured on agentmods" height="20"></a>

Per session 152 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,200 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.

Model	Per session	Once invoked
Fable 5.1	$0.00152	$0.01200
Opus 5	$0.00076	$0.00600
Sonnet 5	$0.00030	$0.00240
Haiku 4.5	$0.00015	$0.00120

Measured 7d ago against content hash f1d5c35b9f7a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

skill-selection 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.

.agents/skills/skill-selection/SKILL.md · 55 lines

What it actually says

スキルの選定

発火タイミング

自プロジェクトを新規セットアップしてスキル群を初期導入する
上流リポジトリで新規スキルが追加され、自プロジェクトに取り込むか判断する
プロジェクトの技術スタック・運用方針が変わり、既存スキルの要不要を再評価する
不要なスキルを除外する

採用判断

MUST: 各スキルの frontmatter description、発火タイミング、本文 MUST/NEVER を読み、自プロジェクトの技術スタック・運用ルール・チーム慣習と照合する
MUST: 採用基準を満たさないスキルは導入しない（unused skill はメンテ対象と矛盾源を増やすので除外する）
SHOULD: 「いつか必要かもしれない」段階のスキルは導入を保留する; 実際に使う段階で取り込む
NEVER: 上流から無条件に全スキルを取り込まない
NEVER: 採用していないスキル名を運用ルール・コードルール・他スキル本文から参照する（参照する場合はそのスキルも採用する）

新規導入

MUST: 上流リポジトリ philtzjp/skills から対象スキル <name> の SKILL.md を取得する（git show、gh api、上流クローン参照など）
MUST: 自プロジェクトの .agents/skills/<name>/SKILL.md として配置する
MUST: .claude/skills/<name> を ../../.agents/skills/<name> への相対シンボリックリンクとして作成する
MUST: AGENTS.md または CLAUDE.md（実体ファイル）のスキル表に新規スキル名と発火タイミングの行を追加する
MUST: refresh-skills の整合性検査を実行する
NEVER: .claude/skills/<name> だけ作成して .agents/skills/<name>/SKILL.md の正本を欠落させる

削除

MUST: .agents/skills/<name>/ ディレクトリを削除する
MUST: .claude/skills/<name> のシンボリックリンクを削除する
MUST: AGENTS.md または CLAUDE.md（実体ファイル）のスキル表から該当行を削除する
MUST: 当該スキル名を参照する他スキル・運用ルール・コードルールを検索し、参照を更新または削除する
MUST: refresh-skills の整合性検査を実行する

AGENTS.md / CLAUDE.md の取り扱い

MUST: スキル表の正本は実体ファイル側に置く
IF: AGENTS.md が存在し CLAUDE.md がそのシンボリックリンク; THEN MUST: AGENTS.md を編集する
IF: CLAUDE.md のみ存在する; THEN MUST: CLAUDE.md を編集する
MUST: スキル表は採用済みスキル（.agents/skills/<name>/SKILL.md が存在するもの）と完全一致させる
MUST: 採用しないスキルに依存する記述（コードルール / 運用ルール / パッケージ規約など）は、採用するスキル構成に合わせて書き換える
NEVER: スキル表に未導入のスキルを記載しない
NEVER: 採用していないスキルに依存する MUST / NEVER ルールを AGENTS.md / CLAUDE.md に残す

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.

7d ago First seen · 55 lines · 152 tokens per session scan A f1d5c35b9f7a

Subscribe to this mod's changes

skill-selection is a skill published in the GitHub repository philtzjp/live-connector (6 stars, last pushed 2mo ago), licensed MIT. It adds 152 tokens to every session and 1,200 once invoked, about $0.0008 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 2026-08-31.

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live-connector: Skill for Claude Code