skill-create

skill-create is a skill for Claude Code, Codex from joris887/exosuit. It costs 20 tokens per session (1,618 once invoked), scanned A, original, MIT.

A repository-analysis workflow that identifies the technologies, frameworks, libraries, and development tools used in a project, then proposes matching skills, rules, and tool hooks. A repository is the project's source files and configuration stored together.

In plain words
What is it for?
Use it when setting up agent support for a project that uses tools such as React, Django, Rust, Go, Java, Ruby, or similar technologies.
Why use it?
It helps tailor an agent to an unfamiliar codebase and avoids creating duplicate guidance that already exists.

Skill for Claude CodeCodex

Part of the exosuit plugin — 44 skills, 1 command, 9 agents, 10 hooks shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/joris887/exosuit/skill-create
Any agent
npx skills add joris887/exosuit --skill skill-create
Clone the repo
git clone --depth 1 https://github.com/joris887/exosuit

Made for: Claude Code, Codex.

Or install exosuit, the plugin that ships this one along with the rest of its 44 skills, 1 command, 9 agents, 10 hooks.

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 skill-create

README.md
[![agentmods](https://agentmods.dev/badge/skills/joris887/exosuit/skill-create.svg)](https://agentmods.dev/skills/joris887/exosuit/skill-create)
Your own site
<a href="https://agentmods.dev/skills/joris887/exosuit/skill-create"><img src="https://agentmods.dev/badge/skills/joris887/exosuit/skill-create.svg" alt="Measured on agentmods" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,618 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00020 $0.01618
Opus 5 $0.00010 $0.00809
Sonnet 5 $0.00004 $0.00324
Haiku 4.5 $0.00002 $0.00162

Measured 3d ago against content hash 8c43aab7f5a2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

skill-create 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 3d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/init-skill.sh, scripts/update-registry.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/skill-create/SKILL.md · 207 lines

How it starts

The opening of the file, as written. The whole thing — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.


skill-create

Analyzing repository and generating technology skills.

1. Scan Repository

Identify technologies, frameworks, and tools in use:

1a. Parse dependency files

Scan for all dependency/config files in the project:

  • package.json, pyproject.toml, Cargo.toml, Package.swift
  • go.mod, pom.xml, build.gradle, Gemfile, composer.json
  • .pre-commit-config.yaml, CI configuration files

1b. Scan imports and usage

Identify major technology areas by scanning source code imports and configuration files.

1c. Check existing skills

Read .claude/skills/SKILLS_INVENTORY.md to avoid creating duplicates.

2. Classify Technologies

Categorize each technology by impact and relevance:

Category Examples Skill Priority
Core Framework (>20% of codebase) React, Django, Rails, SwiftUI High — create skill + reference doc
Major Library (significant usage) SQLite, Redis, Prisma Medium — create skill
Build/Dev Tool (development workflow) webpack, jest, ruff Low — create skill if complex
Minor Dependency (small usage) lodash, httpx, pydantic Skip — standard usage, no skill needed

Decision Criteria for Reference Documents

Create reference docs co-located with the skill (.claude/skills/<tech-name>/references/) when:

  • Technology is core (>20% of codebase interaction)
  • API is complex with project-specific patterns
  • Version-specific gotchas exist that an LLM would miss
  • Official documentation is large and we use a specific subset

Co-locating references with skills keeps everything self-contained and allows relative path references from SKILL.md.

Skip reference doc when:

Read the full file on GitHub · 207 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 3d ago First seen · 207 lines · 20 tokens per session scan A 8c43aab7f5a2

Subscribe to this mod's changes

skill-create is a skill published in the GitHub repository joris887/exosuit (4 stars, last pushed 14d ago), licensed MIT. It adds 20 tokens to every session and 1,618 once invoked, about $0.0001 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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