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 skills add stevesolun/ctx --skill toolboxgit clone --depth 1 https://github.com/stevesolun/ctxWrote 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.
[](https://agentmods.dev/skills/stevesolun/ctx/toolbox)<a href="https://agentmods.dev/skills/stevesolun/ctx/toolbox"><img src="https://agentmods.dev/badge/skills/stevesolun/ctx/toolbox/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.
<a href="https://agentmods.dev/skills/stevesolun/ctx/toolbox"><img src="https://agentmods.dev/badge/skills/stevesolun/ctx/toolbox.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00077 | $0.00674 |
| Opus 5.5 | $0.00031 | $0.00270 |
| Sonnet 5.5 | $0.00015 | $0.00135 |
| Haiku 4.5 | $0.00008 | $0.00067 |
Grade A, and why
toolbox 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.
toolbox
Named bundles of skills/agents that run before (pre) or after (post)
a development task. Learn patterns from past work and propose new bundles.
Invoke slash, pre-commit, session-end, or file-save.
Quick reference
| Task | Command |
|---|---|
| Seed 5 starter toolboxes | python src/toolbox.py init |
| List available toolboxes | python src/toolbox.py list |
| Inspect one | python src/toolbox.py show ship-it |
| Activate (global) | python src/toolbox.py activate ship-it |
| Export for sharing | python src/toolbox.py export ship-it |
| Import a shared toolbox | python src/toolbox.py import file.yaml |
| Validate config | python src/toolbox.py validate |
Starter templates
| Name | When to use |
|---|---|
| ship-it | End-of-feature: 7-expert council on the change set |
| security-sweep | Security audit with guardrail blocking HIGH findings |
| refactor-safety | Refactors with graph-informed blast radius |
| docs-review | When touching Markdown or API docs |
| fresh-repo-init | Blank repo: run intent interview and scaffold |
Data model
Global: ~/.claude/toolboxes.json.
Per-repo (overrides global): <repo_root>/.toolbox.yaml.
Each toolbox declares:
pre— skills/agents to load before work startspost— agents that form the council after work endsscope.analysis—diff|full|graph-blast|dynamictrigger—slash,pre_commit,session_end, orfile_saveglobbudget.max_tokens/budget.max_seconds— hard stop on runaway costdedup.policy—fresh(always re-run) orcached(reuse within window)guardrail— if true, block commit on HIGH findings
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.
- 1mo ago First seen · 63 lines · 77 tokens per session scan A a23b348c816e
toolbox is a skill published in the GitHub repository stevesolun/ctx (589 stars, last pushed 7d ago), licensed MIT. It adds 77 tokens to every session and 674 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-09-03.
Other skills, from other repositories
slack
Read and search messages, channels, and threads in the user's Slack workspace. Use to catch up on team discussions and decisions, post channel messages, and reply to coworkers through Slack's official MCP server.
onboard
Onboarding doc for a new contributor or agent — project state, conventions, priorities relevant to the specified role.
operator-scorecard
Three recap modes - default synthesizes agent health, community growth, and economic activity into a was-it-worth-it verdict; ops recaps what shipped and failed; push ranks push impact.
heartbeat
Ambient fleet-health check that surfaces anything worth attention (default), or an on-demand priority brief - the 3 things to focus on, why now, and what moved (var=brief).
shiplog
Recap of everything shipped since the last run - cross-repo PRs, security fixes, star deltas, and X traction, synthesized into a digest article and a ready-to-post shiplog in your voice.
idea-pipeline
Execution-gap audit - cross-references the startup idea backlog against shipped skills, prototypes, and cross-repo PRs, surfacing the top 3 ideas to build next by narrative and operator fit.