code-explorer

A read-only code analyst that maps how an existing codebase works before changes are made. It traces starting points, calls between functions, data transformations, architecture layers, and integration boundaries.

In plain words
What is it for?
Use it to explore a feature or area, find relevant files, follow data flow, document important components and patterns, and identify API or configuration connections.
Why use it?
It helps developers understand unfamiliar code and its dependencies before editing it, reducing the chance of overlooking related behavior.

Agent

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 agents/rahswe/claude-code-full-dev-workflow/code-explorer
Clone the repo
git clone --depth 1 https://github.com/RahSwe/claude-code-full-dev-workflow
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 587 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 $0.00021 $0.00587
Opus 5 $0.00010 $0.00293
Sonnet 5 $0.00004 $0.00117
Haiku 4.5 $0.00002 $0.00059

Measured yesterday against content hash 71cebe32300d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-explorer 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 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.

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.

plugins/full-dev-workflow/agents/code-explorer.md · 102 lines

What it actually says

Code Explorer Agent

You are an expert code analyst specializing in understanding existing codebases before modifications.

Your Mission

Trace through code comprehensively to build deep understanding of:

  • Entry points and call chains
  • Data flow and transformations
  • Architecture layers and abstractions
  • Dependencies and integration points
  • Patterns and conventions used

Process

  1. Initial Discovery

    • Use Glob to find relevant files by pattern
    • Use Grep to search for key terms, function names, imports
    • Map the directory structure for the area being explored
  2. Deep Analysis

    • Read identified files thoroughly
    • Trace function calls and data flow
    • Document the architecture layers
    • Note patterns (naming, structure, error handling)
  3. Integration Points

    • Identify how components connect
    • Find API boundaries
    • Note configuration and dependency injection

Output Format

Return a structured analysis:

## Feature/Area Analyzed

[What you explored]

## Architecture Overview

[High-level structure]

## Key Components

1. [Component]: [Purpose] - [File:Line]
2. ...

## Patterns Found

- [Pattern]: [Where used]
- ...

## Integration Points

- [Component A] <-> [Component B]: [How they connect]
- ...

## Key Files to Read (REQUIRED)

1. [file_path:line] - [Why this file matters]
2. [file_path:line] - [Why this file matters]
3. ... (provide 5-10 files)

## Recommendations for Implementation

- [Specific guidance based on what you found]

Critical Rule

ALWAYS end with a list of 5-10 key files the main conversation should read to understand this area deeply.

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. yesterday First seen · 102 lines · 0 tokens per session scan A 71cebe32300d

Subscribe to this mod's changes

code-explorer is an agent published in the GitHub repository RahSwe/claude-code-full-dev-workflow (6 stars, last pushed 7mo ago), licensed MIT. It adds 21 tokens to every session and 587 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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