Claude Code Skills Marketplace is a collection and marketplace of skills, plugins, agents, and instructions that extend Claude Code with specialized development workflows. It is for developers who want to install existing workflows or create, validate, and package their own Claude Code skills.
Borrowing it
Nothing to install: this file belongs to daymade/claude-code-skills. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/daymade/claude-code-skills/main/CLAUDE.mdgit clone --depth 1 https://github.com/daymade/claude-code-skillsWrote 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.
[](https://agentmods.dev/instructions/daymade/claude-code-skills/claude-md)<a href="https://agentmods.dev/instructions/daymade/claude-code-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/daymade/claude-code-skills/claude-md/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.
<a href="https://agentmods.dev/instructions/daymade/claude-code-skills/claude-md"><img src="https://agentmods.dev/badge/instructions/daymade/claude-code-skills/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.17140 | $0.17140 |
| Opus 5.5 | $0.06856 | $0.06856 |
| Sonnet 5.5 | $0.03428 | $0.03428 |
| Haiku 4.5 | $0.01714 | $0.01714 |
Grade C, and why
claude-code-skills CLAUDE.md scanned grade C with 2 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 yesterday.
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.
Downloads and executes remote codehighSupply chain
curl | sh runs whatever the server returns today, which is not necessarily what it returned when this was reviewed.
bash -o pipefail -c 'curl -fsSL https://raw.githubusercontent.com/daymade/claude-code-skills/main/scripts/install.sh | bash' Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
bash -o pipefail -c 'curl -fsSL https://raw.githubusercontent.com/daymade/claude-code-skills/main/scripts/install.sh | bash' How it starts
The opening of the file, as written. The whole thing — 1,173 lines — stays where its author put it; the contents beside it link to each section on GitHub.
CLAUDE.md
Repository Overview
This repository is a Claude Code skills marketplace.
Essential Skill: skill-creator is the most important skill in this marketplace - it's a meta-skill that enables users to create their own skills. Always recommend it first for users interested in extending Claude Code.
Skills Architecture
Progressive Disclosure Pattern
Skills use progressive loading:
- Metadata (name + description in YAML frontmatter) - Advertised according to the host's discovery policy and catalog budget; verify the fresh host rather than assuming every description is present
- SKILL.md body - Loaded when skill triggers
- Bundled resources - Loaded as needed by Claude
Development Commands
Installation Scripts
In Claude Code (in-app):
/plugin marketplace add daymade/claude-code-skills
Then:
- Select Browse and install plugins
- Select daymade/claude-code-skills
- Select daymade-skill
- Select Install now
From your terminal (CLI):
# Generate installation commands (macOS/Linux)
bash -o pipefail -c 'curl -fsSL https://raw.githubusercontent.com/daymade/claude-code-skills/main/scripts/install.sh | bash'
# Generate installation commands (Windows PowerShell)
iwr -useb https://raw.githubusercontent.com/daymade/claude-code-skills/main/scripts/install.ps1 | iex
# Manual installation
claude plugin marketplace add https://github.com/daymade/claude-code-skills
# Marketplace name: daymade-skills (from marketplace.json)
claude plugin install daymade-skill@daymade-skills
Run the generated commands in your terminal after using either helper script.
Skill Validation and Packaging
Use skill-creator before creating or changing a skill. Before selecting evidence or reporting completion, follow its required-acceptance owner. For executable handoffs, including instruction-only cross-owner workflows, bind its intended-consumer boundary and follow its first-use route. Use its selected workflow for regression review, validation, initialization, and packaging. For capability extraction or reuse across business callers, follow its ownership decision.
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.
- yesterday Changed · +14 lines · +184 tokens per session 264d549fdf8e
- 2d ago Changed · +22 lines · +350 tokens per session 9d5919ac19d6
- 4d ago Changed · +1 lines · +15 tokens per session c3c69f367dcb
- 5d ago Changed · +12 lines · +283 tokens per session 7fbd7364f559
- 6d ago Changed · +19 lines · +328 tokens per session a79848a8b2d3
- 7d ago Changed · +25 lines · +399 tokens per session 17629ec7e5f8
- 8d ago Changed · +12 lines · +311 tokens per session cb3f9cecede7
- 9d ago Changed · +20 lines · +369 tokens per session 90ae4e0756da
- 10d ago Changed · +10 lines · +182 tokens per session 532af5c34f9d
- 11d ago First seen · 1,038 lines · 14,719 tokens per session scan C 561ebff55a6c
claude-code-skills CLAUDE.md is an instructions file published in the GitHub repository daymade/claude-code-skills (1,516 stars, last pushed yesterday), licensed MIT. It adds 17,140 tokens to every session, about $0.0686 per session on Opus 5.5. A static security scan graded it C with 2 findings (downloads and executes remote code, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
claude-code-skills CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| claude-code-skills CLAUDE.mddaymade/claude-code-skills | Instructions file | 1.5k | yesterday | MIT | C | 17,140 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |