deep-explore

deep-explore is a skill for Claude Code, Codex from ao92265/claude-code-playbook. It costs 128 tokens per session (405 once invoked), scanned A, original, MIT.

A codebase research workflow for answering complex questions by tracing code across many files, from entry points through data changes and side effects.

In plain words
What is it for?
Use it to explain how a feature works, follow a request through the application, or document the codebase’s architecture and important design details.
Why use it?
It reduces the guesswork and missed connections that can happen when understanding a large codebase. The result points to relevant files and explains how the pieces fit together.

Skill for Claude CodeCodex

Part of the playbook plugin — 49 skills, 4 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/ao92265/claude-code-playbook/deep-explore
Any agent
npx skills add ao92265/claude-code-playbook --skill deep-explore
Clone the repo
git clone --depth 1 https://github.com/ao92265/claude-code-playbook

Made for: Claude Code, Codex.

Or install playbook, the plugin that ships this one along with the rest of its 49 skills, 4 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 deep-explore

README.md
[![agentmods](https://agentmods.dev/badge/skills/ao92265/claude-code-playbook/deep-explore.svg)](https://agentmods.dev/skills/ao92265/claude-code-playbook/deep-explore)
Your own site
<a href="https://agentmods.dev/skills/ao92265/claude-code-playbook/deep-explore"><img src="https://agentmods.dev/badge/skills/ao92265/claude-code-playbook/deep-explore.svg" alt="Measured on agentmods" height="20"></a>
Per session 128 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 405 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 $0.00128 $0.00405
Opus 5 $0.00064 $0.00202
Sonnet 5 $0.00026 $0.00081
Haiku 4.5 $0.00013 $0.00040

Measured 4d ago against content hash 2efe428797a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

deep-explore 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 4d 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.

skills/deep-explore/SKILL.md · 53 lines

What it actually says

Research the following question thoroughly:

$ARGUMENTS

Instructions

  1. Use Glob to find relevant files by name patterns
  2. Use Grep to search for keywords, function names, imports, and references
  3. Use Read to examine the most relevant files in detail
  4. Trace the flow end-to-end: entry points, middleware, handlers, data transformations, and side effects

Output Format

Return a structured summary:

Answer

A concise 2-3 sentence answer to the research question.

Key Files

List the most important files with their roles:

  • path/to/file.ts — what it does

Flow

If applicable, describe the execution flow step-by-step.

Architecture Notes

Any relevant patterns, design decisions, or gotchas discovered.

Related

Other files or areas worth investigating if the user wants to go deeper.

Important

  • Be thorough but concise — the summary goes back to the main context
  • Include specific file paths and line numbers where relevant
  • Don't dump raw file contents — summarize what matters
  • If the codebase doesn't contain what's being asked about, say so clearly
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. 4d ago First seen · 53 lines · 128 tokens per session scan A 2efe428797a5

Subscribe to this mod's changes

deep-explore is a skill published in the GitHub repository ao92265/claude-code-playbook (10 stars, last pushed 18d ago), licensed MIT. It adds 128 tokens to every session and 405 once invoked, about $0.0006 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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