A command-line research tool that searches source code and documentation from Git repositories, local folders, and npm packages. It answers questions using those selected sources as context.

Use it to add and manage searchable resources, check configured resources, and ask questions about specific libraries or frameworks, including questions that combine several resources.

It reduces uncertainty when library behaviour or APIs may have changed, because answers are grounded in the relevant source material instead of memory alone.

btca-cli — Skill for Codex by davis7dotsh/better-context

About the project

better-context, also called btca, helps coding agents answer questions about project libraries and frameworks by searching their actual source code instead of relying only on documentation. It is for developers who need current technical context during coding, and the catalogue entries package its agent skill, rule, command, and instruction.

davis7dotsh/better-context · 1,151 stars · on GitHub · btca.dev

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 davis7dotsh/better-context --skill btca-cli

Clone the repo

git clone --depth 1 https://github.com/davis7dotsh/better-context

Made for: Codex.

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/davis7dotsh/better-context/btca-cli/github.svg)](https://agentmods.dev/skills/davis7dotsh/better-context/btca-cli)

Your own site

<a href="https://agentmods.dev/skills/davis7dotsh/better-context/btca-cli"><img src="https://agentmods.dev/badge/skills/davis7dotsh/better-context/btca-cli/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/davis7dotsh/better-context/btca-cli"><img src="https://agentmods.dev/badge/skills/davis7dotsh/better-context/btca-cli.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 512 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. Third-party audits

Socket pass 16 Sept 2026
Snyk warn 16 Sept 2026

How audits are shown

Origin 100% 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.

Model	Per session	Once invoked
Fable 5.1	$0.00070	$0.00512
Opus 5.5	$0.00028	$0.00205
Sonnet 5.5	$0.00014	$0.00102
Haiku 4.5	$0.00007	$0.00051

Measured 2mo ago against content hash de15feb1114a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

btca-cli 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 2mo 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

100% identical to btca-cli — 0 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.

skills/btca-cli/SKILL.md · 65 lines

What it actually says

btca CLI

btca is a source-first research CLI. It hydrates resources (git, local, npm) into searchable context, then answers questions grounded in those sources. Use configured resources for ongoing work, or one-off anonymous resources directly in btca ask.

Full CLI reference: https://docs.btca.dev/guides/cli-reference

Add resources:

# Git resource
btca add -n svelte-dev https://github.com/sveltejs/svelte.dev

# Local directory
btca add -n my-docs -t local /absolute/path/to/docs

# npm package
btca add npm:@types/[email protected] -n node-types -t npm

Verify resources:

btca resources

Ask a question:

btca ask -r svelte-dev -q "How do I define remote functions?"

Common Tasks

Ask with multiple resources:

btca ask -r react -r typescript -q "How do I type useState?"

Ask with anonymous one-off resources (not saved to config):

# One-off git repo
btca ask -r https://github.com/sveltejs/svelte -q "Where is the implementation of writable stores?"

# One-off npm package
btca ask -r npm:[email protected] -q "How is useTransition exported?"

Config Overview

Config lives in btca.config.jsonc (project) and ~/.config/btca/btca.config.jsonc (global).
Project config overrides global and controls provider/model and resources.

Troubleshooting

"No resources configured": add resources with btca add ... and re-run btca resources.
"Provider not connected": run btca connect and follow the prompts.
"Unknown resource": use btca resources for configured names, or pass a valid HTTPS git URL / npm:<package> as an anonymous one-off in btca ask.

Files

What ships with it

1 file 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.

agents/openai.yaml 106 B

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.

2mo ago First seen · 65 lines · 70 tokens per session scan A de15feb1114a

Subscribe to this mod's changes

btca-cli is a skill published in the GitHub repository davis7dotsh/better-context (1,151 stars, last pushed 6mo ago), licensed MIT. It adds 70 tokens to every session and 512 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 100% identical to btca-cli, differing in 0 lines, and is treated as a copy.

Building agents Research ai context docs

btca-cli next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
btca-clidavis7dotsh/better-context	Skill	1.2k	6mo ago	MIT	A	70	Codex
context-budgetcoco-research/coco	Skill	628	yesterday	Apache-2.0	A	49	Claude Code, Codex
mindos-zhGeminiLight/MindOS	Skill	704	15d ago	MIT	A	490	Claude Code
mindosGeminiLight/MindOS	Skill	704	15d ago	MIT	A	136	Claude Code
mindos-viewsGeminiLight/MindOS	Skill	704	15d ago	MIT	A	60	Claude Code, Codex
mindosGeminiLight/MindOS	Skill	704	15d ago	MIT	A	157	Claude Code, Codex
translatezeabur/zeabur	Skill	746	2d ago	MPL-2.0	A	40	Claude Code