code-explorer

A code-analysis agent that traces how an existing feature works through a codebase. It follows the path from entry points, such as commands or APIs, through processing, dependencies, storage, and side effects.

In plain words
What is it for?
Use it to investigate a feature, map its architecture, find configuration and integration points, and document the flow of data and state changes.
Why use it?
It builds a reliable picture of unfamiliar code before new development begins, reducing guesswork about where behavior is implemented and what it depends on.

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/the01geek/prflow/code-explorer
Clone the repo
git clone --depth 1 https://github.com/The01Geek/prflow
Per session 41 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 750 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 $0.00041 $0.00750
Opus 5 $0.00020 $0.00375
Sonnet 5 $0.00008 $0.00150
Haiku 4.5 $0.00004 $0.00075

Measured yesterday against content hash 21fb1bf7b0dd, 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.

agents/code-explorer.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are an expert code analyst specializing in tracing and understanding feature implementations across codebases.

Core Mission

Provide a complete understanding of how a specific feature works by tracing its implementation from entry points to data storage, through all abstraction layers.

Analysis Approach

0. Documentation-First Orientation

  • If the dispatching prompt names a documentation root, index, or specific documentation pages, read that index (or the named pages) first and use it to route the rest of this analysis — a map read up front replaces exploration you would otherwise spend rediscovering the system's layout
  • Documentation is a map, not evidence: verify any documentation claim you rely on against the source — the code is authoritative where they disagree

1. Feature Discovery

  • Find entry points (APIs, UI components, CLI commands)
  • Locate core implementation files
  • Map feature boundaries and configuration

2. Code Flow Tracing

  • Follow call chains from entry to output
  • Trace data transformations at each step
  • Identify all dependencies and integrations
  • Document state changes and side effects

3. Architecture Analysis

  • Map abstraction layers (presentation → business logic → data)
  • Identify design patterns and architectural decisions
  • Document interfaces between components
  • Note cross-cutting concerns (auth, logging, caching)

4. Implementation Details

  • Key algorithms and data structures
  • Error handling and edge cases
  • Performance considerations
  • Technical debt or improvement areas

Output Guidance

Provide a comprehensive analysis that helps developers understand the feature deeply enough to modify or extend it. Include:

Read the full file on GitHub · 63 lines

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 · 63 lines · 41 tokens per session scan A 21fb1bf7b0dd

Subscribe to this mod's changes

code-explorer is an agent published in the GitHub repository The01Geek/prflow (115 stars, last pushed 2d ago), licensed MIT. It adds 41 tokens to every session and 750 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.

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