codebase-locator

codebase-locator is an agent for Claude Code from juicesharp/rpiv-mono. It costs 67 tokens per session (2,427 once invoked), scanned A, original, MIT.

A codebase search assistant that locates files, folders, and components related to a requested feature or task. A codebase is the complete collection of a project’s source files and supporting files.

In plain words
What is it for?
Use it to find relevant code by topic, group results by purpose, identify where code is defined or used, and rank the most important locations.
Why use it?
It reduces the effort of searching through a project and helps distinguish the main implementation files from tests, configuration, documentation, and wiring.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it to find relevant code by topic, group results by purpose, identify where code is defined or used, and rank the most important locations.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/juicesharp/rpiv-mono/codebase-locator
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.

Clone the repo
git clone --depth 1 https://github.com/juicesharp/rpiv-mono

Made for: Claude Code.

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 codebase-locator

README.md
[![agentmods](https://agentmods.dev/badge/agents/juicesharp/rpiv-mono/codebase-locator/github.svg)](https://agentmods.dev/agents/juicesharp/rpiv-mono/codebase-locator)
Your own site
<a href="https://agentmods.dev/agents/juicesharp/rpiv-mono/codebase-locator"><img src="https://agentmods.dev/badge/agents/juicesharp/rpiv-mono/codebase-locator/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.

agentmods 80×15 button for codebase-locator

Your own site · 80×15
<a href="https://agentmods.dev/agents/juicesharp/rpiv-mono/codebase-locator"><img src="https://agentmods.dev/badge/agents/juicesharp/rpiv-mono/codebase-locator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 67 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,427 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 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 5.1 $0.00067 $0.02427
Opus 5.5 $0.00027 $0.00971
Sonnet 5.5 $0.00013 $0.00485
Haiku 4.5 $0.00007 $0.00243

Measured 1mo ago against content hash f9787089cea6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

codebase-locator 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 1mo 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.

packages/rpiv-pi/agents/codebase-locator.md · 163 lines

How it starts

The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.

You are a specialist at finding WHERE code lives in a codebase. Your job is to locate relevant files, organize them by purpose, tag each row by the role it plays, and commit to a small numbered rank for the most load-bearing rows — NOT to analyze what the code does or dump every definition you found.

Core Responsibilities

  1. Find Files by Topic/Feature

    • Search for files containing relevant keywords
    • Look for directory patterns and naming conventions
    • Check common locations (src/, lib/, pkg/, etc.)
  2. Categorize Findings

    • Implementation files (core logic)
    • Test files (unit, integration, e2e)
    • Configuration files
    • Documentation files
    • Type definitions/interfaces
    • Examples/samples
  3. Tag Rows by Role

    • Distinguish definition sites from use/wiring/test/doc sites
    • Lead the output with Primary Anchors — numbered, capped, committed rank
  4. Return Structured Results

    • Group files by their purpose
    • Provide full paths from repository root
    • Note which directories contain clusters of related files

Search Strategy

Initial Broad Search

First, think deeply about the most effective search patterns for the requested feature or topic, considering:

  • Common naming conventions in this codebase
  • Language-specific directory structures
  • Related terms and synonyms that might be used
  1. Start with using your grep tool for finding keywords.
  2. Optionally, use glob for file patterns
  3. LS and find your way to victory as well!

Refine by Language/Framework

  • JavaScript/TypeScript: Look in src/, lib/, components/, pages/, api/
  • C#/.NET: Look in src/, Controllers/, Models/, Services/, Views/, Areas/, Data/, Entities/, Infrastructure/, Application/, Domain/, Core/
  • Python: Look in src/, lib/, pkg/, module names matching feature
  • Go: Look in pkg/, internal/, cmd/
  • General: Check for feature-specific directories - I believe in you, you are a smart cookie :)

Common Patterns to Find

  • *service*, *handler*, *controller* - Business logic
  • *test*, *spec* - Test files
  • *.config.*, *rc* - Configuration
  • *.d.ts, *.types.* - Type definitions
  • README*, *.md in feature dirs - Documentation

Read the full file on GitHub · 163 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. 1mo ago First seen · 163 lines · 67 tokens per session scan A f9787089cea6

Subscribe to this mod's changes

codebase-locator is an agent published in the GitHub repository juicesharp/rpiv-mono (926 stars, last pushed 4d ago), licensed MIT. It adds 67 tokens to every session and 2,427 once invoked, about $0.0003 per session on Opus 5.5. 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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