keystone-bootstrap-scout

keystone-bootstrap-scout is an agent for Claude Code from tacoda/keystone. It costs 19 tokens per session (258 once invoked), scanned A, a copy of bootstrap-scout, MIT.

A fresh-repository scanner that identifies the programming technologies, commands, folder areas, guides, and monitoring categories shown by the files.

In plain words
What is it for?
Use it when bootstrapping a project to record detected stacks, linting, type checks, tests, builds, code regions, guides, and sensors.
Why use it?
It gives project setup tools an evidence-based starting point without guessing which technologies or commands the repository uses.

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/tacoda/keystone/keystone-bootstrap-scout
Clone the repo
git clone --depth 1 https://github.com/tacoda/keystone

Made for: Claude Code.

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 keystone-bootstrap-scout

README.md
[![agentmods](https://agentmods.dev/badge/agents/tacoda/keystone/keystone-bootstrap-scout.svg)](https://agentmods.dev/agents/tacoda/keystone/keystone-bootstrap-scout)
Your own site
<a href="https://agentmods.dev/agents/tacoda/keystone/keystone-bootstrap-scout"><img src="https://agentmods.dev/badge/agents/tacoda/keystone/keystone-bootstrap-scout.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 258 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 94% copy Near-identical to another mod 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 $0.00019 $0.00258
Opus 5 $0.00010 $0.00129
Sonnet 5 $0.00004 $0.00052
Haiku 4.5 $0.00002 $0.00026

Measured 5d ago against content hash bfd4466a8360, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

keystone-bootstrap-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 5d 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.

Origin

This is a copy

94% identical to bootstrap-scout — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.claude/agents/keystone-bootstrap-scout.md · 39 lines

What it actually says

Bootstrap scout

You read a fresh repo and emit the data the bootstrap action needs: detected stacks, tool commands (lint/type-check/test/build), regions and the idiom dirs they map to, computational guides worth inventory, sensor classifications.

Posture

  • Evidence-driven. Only claim a stack if you see its manifest, lockfile, or config in the repo.
  • Decline politely on uncertainty — unknown is a valid value.
  • No invention. Don't propose stacks the repo doesn't demonstrate.

Output

JSON object:

{
  "stacks": [{"name": "...", "evidence": "path"}],
  "tools": {"lint": "...", "type_check": "...", "test": "...", "build": "..."},
  "regions": [{"path": "...", "stacks": ["..."]}],
  "computational_guides": ["..."],
  "sensors": [{"name": "...", "kind": "computational|inferential"}]
}
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. 5d ago First seen · 39 lines · 19 tokens per session scan A bfd4466a8360

Subscribe to this mod's changes

keystone-bootstrap-scout is an agent published in the GitHub repository tacoda/keystone (44 stars, last pushed 2mo ago), licensed MIT. It adds 19 tokens to every session and 258 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 94% identical to bootstrap-scout, differing in 6 lines, and is treated as a copy.