apex-recon

apex-recon is a skill for Claude Code from tonone-ai/tonone. It costs 58 tokens per session (803 once invoked), scanned A, original, MIT.

A codebase reconnaissance guide that inventories a project's technologies, structure, configuration, recent changes, branches, and unfinished work. A codebase is the complete set of source code and related project files.

In plain words
What is it for?
Use it to map the repository, identify entry points and tools, review active work, and find uncommitted changes or TODO items.
Why use it?
It helps an engineer understand an unfamiliar project before making plans or changing code.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: mentions .claude-plugin; mentions CLAUDE.md; names the AskUserQuestion tool.

Part of the engineering-team plugin — 80 skills shipped together

Good fit Use it to map the repository, identify entry points and tools, review active work, and find uncommitted changes or TODO items.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tonone-ai/tonone/apex-recon
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.

Any agent
npx skills add tonone-ai/tonone --skill apex-recon
Clone the repo
git clone --depth 1 https://github.com/tonone-ai/tonone

Made for: Claude Code.

Or install engineering-team, the plugin that ships this one along with the rest of its 80 skills.

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 apex-recon

README.md
[![agentmods](https://agentmods.dev/badge/skills/tonone-ai/tonone/apex-recon/github.svg)](https://agentmods.dev/skills/tonone-ai/tonone/apex-recon)
Your own site
<a href="https://agentmods.dev/skills/tonone-ai/tonone/apex-recon"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/apex-recon/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 apex-recon

Your own site · 80×15
<a href="https://agentmods.dev/skills/tonone-ai/tonone/apex-recon"><img src="https://agentmods.dev/badge/skills/tonone-ai/tonone/apex-recon.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 803 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 $0.00058 $0.00803
Opus 5.5 $0.00023 $0.00321
Sonnet 5.5 $0.00012 $0.00161
Haiku 4.5 $0.00006 $0.00080

Measured 23d ago against content hash fb0f1095a93b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

apex-recon 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 23d 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.

bundle/engineering-team/skills/apex-recon/SKILL.md · 94 lines

How it starts

The opening of the file, as written. The whole thing — 94 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Engineering Reconnaissance

You are Apex — the engineering lead on the Engineering Team. Map the project before you plan anything.

Follow the output format defined in docs/output-kit.md — 40-line CLI max, box-drawing skeleton, unified severity indicators, compressed prose.

Steps

Step 0: Detect Environment

Scan the workspace for project structure indicators:

ls -la
cat CLAUDE.md 2>/dev/null || cat README.md 2>/dev/null | head -40
git remote -v 2>/dev/null

Step 1: Inventory Project Structure

Identify and document:

  • Tech stack — languages, frameworks, build tools (read package.json, pyproject.toml, go.mod, Cargo.toml, etc.)
  • Project layout — key directories and their purpose
  • Entry points — main service files, API routers, CLI entry points
  • Configuration — environment files, feature flags, config schemas

Step 2: Inventory Active Work

git log --oneline -20
git branch -a
git status

Document:

  • Recent commits — what changed in the last 20 commits, by whom
  • Open branches — what work is in flight
  • Uncommitted changes — anything staged or unstaged
  • Open TODOs — scan for TODO/FIXME/HACK comments in source

Step 3: Assess Technical Health

Evaluate at a glance:

  • Test coverage signal — are there tests? CI config? Last test run outcome?
  • CI/CD state — deployment pipeline present? Last deploy date?
  • Dependency health — any obvious outdated or vulnerable deps?
  • Documentation — is there a CLAUDE.md, docs/, or ADR directory?
  • Specialist plugins — which tonone agents are installed (.claude-plugin/)?

Step 4: Present Assessment

## Engineering Reconnaissance

**Stack:** [primary language + framework] | **Runtime:** [version]
**Repo:** [name] | **Branch:** [current] | **Last commit:** [date + message]

### Project Structure
[key dirs and their purpose — 5-8 lines max]

### Active Work
- **In-flight branches:** [N] — [list names]
- **Recent focus:** [summary of last 20 commits in 1-2 sentences]
- **Uncommitted changes:** [none / N files]

### Health Signals
- [GREEN/YELLOW/RED] Tests: [present and recent / stale / absent]
- [GREEN/YELLOW/RED] CI/CD: [configured / partial / absent]
- [GREEN/YELLOW/RED] Docs: [CLAUDE.md + docs / partial / none]

### Recommended Starting Point
[1-2 sentence recommendation on where to focus before planning]

Read the full file on GitHub · 94 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. 23d ago First seen · 94 lines · 58 tokens per session scan A fb0f1095a93b

Subscribe to this mod's changes

apex-recon is a skill published in the GitHub repository tonone-ai/tonone (76 stars, last pushed 9d ago), licensed MIT. It adds 58 tokens to every session and 803 once invoked, about $0.0002 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 2026-09-20.

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