A codebase scouting tool that searches project files and directories in parallel to quickly locate relevant code and understand a repository’s structure.

Use it at the start of feature work, debugging, repository exploration, or any task that requires finding files and understanding their relationships.

It reduces the time spent manually searching when a task spans multiple folders or requires tracing related files.

ck:scout — Skill for Claude Code by bestagentkits

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 bestagentkits/ck-skills --skill scout

Clone the repo

git clone --depth 1 https://github.com/bestagentkits/ck-skills

Made for: Claude Code.

Or install ck-skills, the plugin that ships this one along with the rest of its 14 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/bestagentkits/ck-skills/scout/github.svg)](https://agentmods.dev/skills/bestagentkits/ck-skills/scout)

Your own site

<a href="https://agentmods.dev/skills/bestagentkits/ck-skills/scout"><img src="https://agentmods.dev/badge/skills/bestagentkits/ck-skills/scout/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/bestagentkits/ck-skills/scout"><img src="https://agentmods.dev/badge/skills/bestagentkits/ck-skills/scout.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 42 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 797 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.

Model	Per session	Once invoked
Fable 5.1	$0.00042	$0.00797
Opus 5	$0.00021	$0.00398
Sonnet 5	$0.00008	$0.00159
Haiku 4.5	$0.00004	$0.00080

Measured 10d ago against content hash 19b960afaf35, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

ck:scout 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 10d 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.

plugins/ck-skills/skills/scout/SKILL.md · 95 lines

How it starts

The opening of the file, as written. The whole thing — 95 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Scout

Fast, token-efficient codebase scouting using parallel agents to find files needed for tasks.

Arguments

Default: Scout using built-in Explore subagents in parallel (./references/internal-scouting.md)
ext: Scout using external Gemini/OpenCode CLI tools in parallel (./references/external-scouting.md)

When to Use

Beginning work on feature spanning multiple directories
User mentions needing to "find", "locate", or "search for" files
Starting debugging session requiring file relationships understanding
User asks about project structure or where functionality lives
Before changes that might affect multiple codebase parts

Quick Start

Analyze user prompt to identify search targets
Use a wide range of Grep and Glob patterns to find relevant files and estimate scale of the codebase
Spawn parallel agents with divided directories
Collect results into concise report

Configuration

Read from .claude/.ck.json:

gemini.model - Gemini model (default: gemini-3-flash-preview)

Workflow

1. Analyze Task

Parse user prompt for search targets
Identify key directories, patterns, file types, lines of code
Determine optimal SCALE value of subagents to spawn

2. Divide and Conquer

Split codebase into logical segments per agent
Assign each agent specific directories or patterns
Ensure no overlap, maximize coverage

3. Register Scout Tasks

Skip if: Agent count ≤ 2 (overhead exceeds benefit)
Skip if: Task tools unavailable (VSCode extension) — use TodoWrite instead
TaskList first — check for existing scout tasks in session
If not found, TaskCreate per agent with scope metadata
See references/task-management-scouting.md for patterns and examples

4. Spawn Parallel Agents

Load appropriate reference based on decision tree:

Internal (Default): references/internal-scouting.md (Explore subagents)
External: references/external-scouting.md (Gemini/OpenCode)

Notes:

TaskUpdate each task to in_progress before spawning its agent (skip if Task tools unavailable)
Prompt detailed instructions for each subagent with exact directories or files it should read
Remember that each subagent has less than 200K tokens of context window
Amount of subagents to-be-spawned depends on the current system resources available and amount of files to be scanned
Each subagent must return a detailed summary report to a main agent

Read the full file on GitHub · 95 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

10d ago First seen · 95 lines · 42 tokens per session scan A 19b960afaf35

Subscribe to this mod's changes

ck:scout is a skill published in the GitHub repository bestagentkits/ck-skills (6 stars, last pushed 3mo ago), licensed MIT. It adds 42 tokens to every session and 797 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 2026-08-31.

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