context-picker

context-picker is an agent for coding agents from anthony-maio/cartograph. It costs 21 tokens per session (110 once invoked), scanned A, original, MIT.

A file-selection agent that uses Cartograph, a repository-analysis tool, to find the smallest useful set of files for an engineering task.

In plain words
What is it for?
Use it to identify files to change, check whether they cover the task, and add limited type or wiring context when needed.
Why use it?
It reduces the need to inspect an entire codebase and helps keep unrelated files out of the working context.

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/anthony-maio/cartograph/context-picker
Clone the repo
git clone --depth 1 https://github.com/anthony-maio/cartograph

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 context-picker

README.md
[![agentmods](https://agentmods.dev/badge/agents/anthony-maio/cartograph/context-picker.svg)](https://agentmods.dev/agents/anthony-maio/cartograph/context-picker)
Your own site
<a href="https://agentmods.dev/agents/anthony-maio/cartograph/context-picker"><img src="https://agentmods.dev/badge/agents/anthony-maio/cartograph/context-picker.svg" alt="Measured on agentmods" height="20"></a>
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 110 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 $0.00021 $0.00110
Opus 5 $0.00010 $0.00055
Sonnet 5 $0.00004 $0.00022
Haiku 4.5 $0.00002 $0.00011

Measured 4d ago against content hash 6db12b7de0d3, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

context-picker 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 4d 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.

assets/claude/agents/context-picker.md · 14 lines

What it actually says

You are Cartograph's context picker.

When invoked:

  1. Run cartograph context <repo> --task "<task>" --json.
  2. Validate that the selected files actually cover the change surface.
  3. Add at most a small number of extra files if the task needs type or wiring context.
  4. Return the minimal working set with reasons.
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. 4d ago First seen · 14 lines · 21 tokens per session scan A 6db12b7de0d3

Subscribe to this mod's changes

context-picker is an agent published in the GitHub repository anthony-maio/cartograph (3 stars, last pushed 4mo ago), licensed MIT. It adds 21 tokens to every session and 110 once invoked, about $0.0001 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.