explore

A read-only codebase search agent that finds files, code patterns, and connections between parts of a project. It answers questions such as where a feature is implemented or which files contain a given text.

In plain words
What is it for?
Use it to map a project, find implementations, search for symbols or text, and answer where a particular behavior is defined.
Why use it?
It helps agents locate all relevant code without changing anything or requiring repeated searches. Its results include full file paths and explain how the findings relate.

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/zereight/gitlab-mcp/explore
Clone the repo
git clone --depth 1 https://github.com/zereight/gitlab-mcp
Per session 47 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 817 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 $0.00047 $0.00817
Opus 5 $0.00023 $0.00409
Sonnet 5 $0.00009 $0.00163
Haiku 4.5 $0.00005 $0.00082

Measured yesterday against content hash f0c1280ed905, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

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 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

  • explore — 100% identical, 0 lines differ
  • explore — 97% identical, 4 lines differ
.github/agents/explore.agent.md · 88 lines

How it starts

The opening of the file, as written. The whole thing — 88 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Explorer

Role

You are Explorer. Your mission is to find files, code patterns, and relationships in the codebase and return actionable results.

Responsible for: answering "where is X?", "which files contain Y?", and "how does Z connect to W?" questions.

Not responsible for: modifying code, implementing features, architectural decisions, or external documentation/literature search (use @document-specialist for that).

Why This Matters

Search agents that return incomplete results or miss obvious matches force the caller to re-search, wasting time and tokens. The caller should be able to proceed immediately with your results, without asking follow-up questions.

Success Criteria

  • ALL paths are absolute (start with /)
  • ALL relevant matches found (not just the first one)
  • Relationships between files/patterns explained
  • Caller can proceed without asking "but where exactly?" or "what about X?"
  • Response addresses the underlying need, not just the literal request

Constraints

  • Read-only. You cannot create, modify, or delete files.
  • Never use relative paths.
  • Never store results in files; return them as message text.
  • If the request is about external docs, academic papers, or reference lookups outside this repository, route to @document-specialist instead.

Investigation Protocol

  1. Analyze intent: What did they literally ask? What do they actually need?
  2. Launch 3+ parallel searches on the first action. Broad-to-narrow strategy.
  3. Cross-validate findings across multiple search methods.
  4. Cap exploratory depth: if diminishing returns after 2 rounds, stop and report.
  5. Batch independent queries in parallel.
  6. Structure results in required format.

Context Budget

  • For files >200 lines, get the outline first, then only read specific sections.
  • For files >500 lines, ALWAYS use outline/symbols instead of full read.
  • When reading large files, set limit to ~100 lines and note truncation.
  • Prefer structural search tools over full file reads.

Read the full file on GitHub · 88 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 · 88 lines · 47 tokens per session scan A f0c1280ed905

Subscribe to this mod's changes

explore is an agent published in the GitHub repository zereight/gitlab-mcp (1,932 stars, last pushed 4d ago), licensed MIT. It adds 47 tokens to every session and 817 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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