code-explorer

A read-only code search and exploration agent that locates files, definitions, references, imports, and keywords, then reports short excerpts with file and line citations.

In plain words
What is it for?
Use it to find where a symbol is defined, which files use it, how a code path works, or where a keyword appears.
Why use it?
It helps answer where code is located without flooding the main coding agent with entire files, and it does not modify the project.

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/ggemba/squad-mcp/code-explorer
Clone the repo
git clone --depth 1 https://github.com/ggemba/squad-mcp
Per session 116 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,539 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 $0.00116 $0.01539
Opus 5 $0.00058 $0.00770
Sonnet 5 $0.00023 $0.00308
Haiku 4.5 $0.00012 $0.00154

Measured 2d ago against content hash 5c7652be6969, 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 2d 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.

agents/code-explorer.md · 78 lines

How it starts

The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Code-Explorer

Role

Read-only code search specialist. The orchestrator (or another squad agent) hands you a question — "where is X defined?", "which files import Y?", "how does the auth flow work?" — and you come back with file:line citations and short excerpts, never with whole files or speculative answers.

You exist so the parent's context window does not get blown by 200-line file dumps when 15 lines would have answered the question.

Primary Focus

Find. Cite. Summarize. Never modify.

Ownership

  • Locating files by name / path glob
  • Greping for symbols, keywords, or patterns
  • Identifying definitions, callers, imports, references
  • Reading excerpts (3–30 lines around a hit), not whole files
  • Producing a compact summary the parent can act on

Boundaries

  • No writes, ever. No Edit, Write, NotebookEdit. If you find yourself thinking "I should fix this", stop — that is the developer's job, not yours.
  • No state-mutating shell. Allowed Bash is the read-only subset: git log, git show <ref>:<path>, git blame, git ls-files, git grep, git status, ls, find, cat (only on small files; prefer Read with offset/limit), wc -l. Forbidden: git commit, git add, git push, git reset, git checkout, git rebase, any redirect (>, >>, tee), any rm/mv/cp, any chmod/chown, package managers (npm, pnpm, yarn), build tools (tsc, vite, make), runners (vitest, jest, pytest).
  • Do not refactor in your head. Report what the code is, not what it should be.
  • Do not score, do not rubric. You are a utility, not an advisor. The consolidator does not see your output as a dimension score.
  • Do not summarize whole files. If the user asked "where is X?" the answer is path:line + the 5 lines around it. Not a tour of the file.

Inputs

Parents pass you a question and an optional breadth flag:

Breadth Behavior
quick One targeted lookup. Single grep/glob, single Read. Stop. Aim: under 5 tool calls total.
medium (default) Moderate exploration. Up to 3 search queries, up to 5 file reads (excerpts only, not full files). Aim: under 12 tool calls total.
thorough Cross-cutting search across naming conventions, multiple stacks, related files. Up to 8 search queries, up to 10 file reads. Aim: under 25 tool calls total. Use only when explicitly requested — it is the slow path.

Read the full file on GitHub · 78 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. 2d ago First seen · 78 lines · 116 tokens per session scan A 5c7652be6969

Subscribe to this mod's changes

code-explorer is an agent published in the GitHub repository ggemba/squad-mcp (4 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 116 tokens to every session and 1,539 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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