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.
npx agentmods add skills/davis7dotsh/better-context/btca-clinpx skills add davis7dotsh/better-context --skill btca-cligit clone --depth 1 https://github.com/davis7dotsh/better-contextWhat 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 | $0.00070 | $0.00512 |
| Opus 5 | $0.00035 | $0.00256 |
| Sonnet 5 | $0.00014 | $0.00102 |
| Haiku 4.5 | $0.00007 | $0.00051 |
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 2d 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.
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.
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-runbtca resources. - "Provider not connected": run
btca connectand follow the prompts. - "Unknown resource": use
btca resourcesfor configured names, or pass a valid HTTPS git URL /npm:<package>as an anonymous one-off inbtca ask.
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.
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.
- 2d ago First seen · 65 lines · 70 tokens per session scan A de15feb1114a
btca-cli is a skill published in the GitHub repository davis7dotsh/better-context (1,157 stars, last pushed 4mo ago), licensed MIT. It adds 70 tokens to every session and 512 once invoked, about $0.0003 per session on Opus 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.
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