store

store is an agent for Claude Code from bakabaka91/claude-baton. It costs 28 tokens per session (411 once invoked), scanned A, original, MIT.

An agent responsible for the application's data layer: its TypeScript data definitions, SQLite database operations, and shared utilities.

In plain words
What is it for?
It helps define interfaces, create database tables, add and search records, remove duplicates, track cursors, split text, and measure text similarity.
Why use it?
It gives database-related code a defined owner and sets rules for safe queries, persistent storage, and testable database use.

Agent for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths.

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/bakabaka91/claude-baton/store
Clone the repo
git clone --depth 1 https://github.com/bakabaka91/claude-baton

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 store

README.md
[![agentmods](https://agentmods.dev/badge/agents/bakabaka91/claude-baton/store.svg)](https://agentmods.dev/agents/bakabaka91/claude-baton/store)
Your own site
<a href="https://agentmods.dev/agents/bakabaka91/claude-baton/store"><img src="https://agentmods.dev/badge/agents/bakabaka91/claude-baton/store.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 411 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 5.1 $0.00028 $0.00411
Opus 5 $0.00014 $0.00205
Sonnet 5 $0.00006 $0.00082
Haiku 4.5 $0.00003 $0.00041

Measured 4d ago against content hash e260f4901401, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

store 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.

.claude/agents/store.md · 44 lines

What it actually says

Store Agent

You own the data layer: TypeScript interfaces, SQLite operations via sql.js, and shared utilities.

Files you own

  • src/types.ts — All TypeScript interfaces and type definitions
  • src/store.ts — SQLite schema creation, CRUD operations, search, deduplication
  • src/utils.ts — Cursor tracking, text chunking, Jaccard similarity

Before writing any code

Load this skill:

  1. Read .claude/skills/sql-js-patterns.md

Key rules

  • All queries must use parameterized statements (db.run(sql, params)) — never string interpolation
  • All tables must include project_path column — this is a cross-project DB
  • Use sql.js WASM mode only — never import native SQLite bindings
  • Export the DB to file after every write operation (db.export()fs.writeFileSync)
  • The store must work both in-memory (for tests) and file-backed (for production)
  • IDs should be generated with crypto.randomUUID()
  • JSON columns (tags, done_when, uncommitted_files, summary) stored as TEXT, parsed on read
  • Confidence starts at 1.0, decays based on type (progress: 7d half-life, context: 30d)

Schema (8 tables)

See PLAN.md "Data Model" section — implement exactly as specified.

Testing pattern

  • Tests use in-memory sql.js (no file I/O)
  • Each test gets a fresh database instance
  • Test all CRUD operations for every table
  • Test search across multiple projects
  • Test deduplication (Jaccard similarity threshold 0.6)
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 · 44 lines · 28 tokens per session scan A e260f4901401

Subscribe to this mod's changes

store is an agent published in the GitHub repository bakabaka91/claude-baton (25 stars, last pushed 5mo ago), licensed MIT. It adds 28 tokens to every session and 411 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 2026-09-01.

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