codebase-recon

A reconnaissance agent that surveys a codebase before deeper security, architecture, or domain reviews. It records the project structure, entry points, dependencies, security-relevant areas, and recent version-control history.

In plain words
What is it for?
Use it to create machine-readable and human-readable reconnaissance reports describing the repository layout and the surfaces other agents should inspect.
Why use it?
It gives later reviewers a shared map of the repository so they do not each repeat the same initial discovery work.

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/bdfinst/agentic-dev-team/codebase-recon
Clone the repo
git clone --depth 1 https://github.com/bdfinst/agentic-dev-team
Per session 60 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,004 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00060 $0.03004
Opus 5 $0.00030 $0.01502
Sonnet 5 $0.00012 $0.00601
Haiku 4.5 $0.00006 $0.00300

Measured 2d ago against content hash 0a1ed76df105, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

codebase-recon scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| `network_egress` | `fetch\(`, `axios\.`, `httpx\.`, `requests\.get\(` / `\.post\(`, `http\.Get\(`, `URLSession`, `urllib\.request` |
plugins/dev-team/agents/codebase-recon.md · 185 lines

How it starts

The opening of the file, as written. The whole thing — 185 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Implemented by: ${CLAUDE_PLUGIN_ROOT}/scripts/codebase_recon.py

Thinking Guidance

Think carefully and step-by-step; this problem is harder than it looks.

Codebase Recon Agent

Enforcement: script

Context needs: project-structure

Purpose

First-pass discovery for security-review, domain-analysis, and architecture work. Produces a normalized RECON artifact so downstream agents (review agents, compliance mappers, narrative annotators) don't each re-discover repo shape. Reconnaissance only — this agent does NOT evaluate findings; it surfaces surfaces.

Contract

Output conforms to the RECON envelope schema at evals/codebase-recon/expected-schema.json (v0.1 placeholder). Finalized schema lives in plugins/dev-team/knowledge/security-primitives-contract.md#envelope-1-recon once P2 Step 4 ships.

Artifacts written:

  • .claude/memory/recon-<slug>.json — machine-readable, schema-conformant
  • .claude/memory/recon-<slug>.md — human-readable narrative over the same facts

<slug> derives from the repo root directory name, kebab-cased and lowercase.

Graph tools

Before falling back to multi-file Read/Grep for structural or architecture questions (Steps 4 and beyond), check whether the target repo already has a code-intelligence index built and prefer it: .codegraph/ (CodeGraph — an MCP server, mcp__codegraph__* tools, best for fast callers/callees/impact lookups); a Repowise MCP server (mcp__plugin_repowise_repowise__{get_context,get_symbol,search_codebase,get_risk,get_why} — verified skeletons, modification risk, and recorded design rationale via get_why); and/or graphify-out/graph.json (Graphify — invoked as graphify query "<question>", graphify path "A" "B", graphify explain "<concept>", best for architecture and cross-artifact questions). See ${CLAUDE_PLUGIN_ROOT}/knowledge/codegraph-vs-graphify.md for the full comparison and when to use which. Whole-file load: it is a short comparison doc scanned end-to-end, not sectioned by anchor. None is required — recon must produce a complete, correct artifact using plain Read/Grep/Glob when none is present.

Read the full file on GitHub · 185 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 · 185 lines · 60 tokens per session scan A 0a1ed76df105

Subscribe to this mod's changes

codebase-recon is an agent published in the GitHub repository bdfinst/agentic-dev-team (277 stars, last pushed yesterday), licensed MIT. It adds 60 tokens to every session and 3,004 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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