cw-research

cw-research is a skill for Claude Code from sighup/claude-workflow. It costs 43 tokens per session (4,663 once invoked), scanned A, original, no licence file.

A codebase research tool that investigates facts about an unfamiliar or complicated codebase and writes a structured report.

In plain words
What is it for?
Learning how an existing codebase works before creating a specification for changes.
Why use it?
It reduces the need to explore a large codebase from scratch before writing a specification. The report provides context for deciding what should be built.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the claude-workflow plugin — 13 skills, 1 hook shipped together

Good fit Learning how an existing codebase works before creating a specification for changes.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sighup/claude-workflow/cw-research
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.

Any agent
npx skills add sighup/claude-workflow --skill cw-research
Clone the repo
git clone --depth 1 https://github.com/sighup/claude-workflow

Made for: Claude Code.

Or install claude-workflow, the plugin that ships this one along with the rest of its 13 skills, 1 hook.

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 cw-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/sighup/claude-workflow/cw-research.svg)](https://agentmods.dev/skills/sighup/claude-workflow/cw-research)
Your own site
<a href="https://agentmods.dev/skills/sighup/claude-workflow/cw-research"><img src="https://agentmods.dev/badge/skills/sighup/claude-workflow/cw-research.svg" alt="Measured on agentmods" height="20"></a>
Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,663 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 unknown 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 5.1 $0.00043 $0.04663
Opus 5 $0.00022 $0.02331
Sonnet 5 $0.00009 $0.00933
Haiku 4.5 $0.00004 $0.00466

Measured 6d ago against content hash 3579705d7042, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

cw-research 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 6d 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.

plugin/skills/cw-research/SKILL.md · 455 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

4 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. 6d ago First seen · 455 lines · 43 tokens per session scan A 3579705d7042

Subscribe to this mod's changes

cw-research is a skill published in the GitHub repository sighup/claude-workflow (15 stars, last pushed 1mo ago), with no licence file. It adds 43 tokens to every session and 4,663 once invoked, about $0.0002 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 2026-08-30.