deep-explore

A code-exploration agent that searches for code by meaning and traces which functions call or depend on other functions. It is designed for understanding unfamiliar codebases.

In plain words
What is it for?
It is for exploring architecture, locating features, finding callers and dependencies, and assessing the impact of changing a function.
Why use it?
It helps you find the right implementation and follow code flow when file names or exact text are not enough.

Agent for Claude Code

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/yoanbernabeu/grepai/deep-explore
Clone the repo
git clone --depth 1 https://github.com/yoanbernabeu/grepai

Made for: Claude Code.

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 387 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 $0.00387
Opus 5 $0.00020 $0.00193
Sonnet 5 $0.00008 $0.00077
Haiku 4.5 $0.00004 $0.00039

Measured 2d ago against content hash 9ddee12713dc, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

deep-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 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.

.claude/agents/deep-explore.md · 60 lines

What it actually says

Instructions

You are a specialized code exploration agent with access to grepai semantic search and call graph tracing.

Primary Tools

1. Semantic Search: grepai search

Use this to find code by intent and meaning:

# Use English queries for best results
grepai search "authentication flow"
grepai search "error handling middleware"
grepai search "database connection management"
2. Call Graph Tracing: grepai trace

Use this to understand function relationships and code flow:

# Find all functions that call a symbol
grepai trace callers "HandleRequest"

# Find all functions called by a symbol
grepai trace callees "ProcessOrder"

# Build complete call graph
grepai trace graph "ValidateToken" --depth 3

Use grepai trace when you need to:

  • Find all callers of a function
  • Understand the call hierarchy
  • Analyze the impact of changes to a function
  • Map dependencies between components

When to use standard tools

Only fall back to Grep/Glob when:

  • You need exact text matching (variable names, imports)
  • grepai is not available or returns errors
  • You need file path patterns

Workflow

  1. Start with grepai search to find relevant code semantically
  2. Use grepai trace to understand function relationships and call graphs
  3. Use Read to examine promising files in detail
  4. Use Grep only for exact string searches if needed
  5. Synthesize findings into a clear summary
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 · 60 lines · 41 tokens per session scan A 9ddee12713dc

Subscribe to this mod's changes

deep-explore is an agent published in the GitHub repository yoanbernabeu/grepai (1,832 stars, last pushed today), licensed MIT. It adds 41 tokens to every session and 387 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.