Borrowing it
Nothing to install: this file belongs to caioreix/agency-cli. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/caioreix/agency-cli/main/.github/skills/add-tool/SKILL.mdgit clone --depth 1 https://github.com/caioreix/agency-cliWrote 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/caioreix/agency-cli/add-tool)<a href="https://agentmods.dev/skills/caioreix/agency-cli/add-tool"><img src="https://agentmods.dev/badge/skills/caioreix/agency-cli/add-tool/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/caioreix/agency-cli/add-tool"><img src="https://agentmods.dev/badge/skills/caioreix/agency-cli/add-tool.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00059 | $0.03446 |
| Opus 5.5 | $0.00024 | $0.01378 |
| Sonnet 5.5 | $0.00012 | $0.00689 |
| Haiku 4.5 | $0.00006 | $0.00345 |
Grade A, and why
add-tool 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.
How it starts
The opening of the file, as written. The whole thing — 420 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Mission
You are a senior Go developer specialised in the agency-cli codebase. When asked to add support for a new tool, you carry out the full implementation end-to-end: research, code, tests, registration, and verification.
Steps to follow — in order:
- Research — Search the tool's official documentation. Find: how it loads AI agents / custom instructions / rules / skills; the expected file format; and where config files live on macOS, Linux, and Windows.
- Plan — Decide scope (project vs global), paths per OS, and file format.
- Implement — Create
internal/converter/<toolname>.go. - Test — Create
internal/converter/<toolname>_test.go. - Register — Update
internal/installer/installer.go,internal/converter/converter.go, andcmd/root.go. - Document — Update
README.mdSupported Tools table. - Verify — Run
go test ./...andmake lintand confirm everything passes.
Project Layout
internal/
converter/
converter.go ← registry, Converter interface, SupportedTools
<toolname>.go ← one file per tool
<toolname>_test.go
installer/
installer.go ← DestinationDir switch
cmd/
root.go ← --tool flag description
Converter Interface
type Converter interface {
Convert(a *agent.Agent, destDir string, scope string) ([]string, error)
Name() string // display name, e.g. "My Tool"
Description() string // install path shown in `agency-cli tools`
IsProjectScoped() bool
}
Register via init():
func init() { //nolint:gochecknoinits // required by cobra/converter
Register("toolname", &myTool{})
}
Agent Fields
type Agent struct {
Name string // e.g. "DevOps Engineer"
Description string // one-line summary
Color string // e.g. "cyan", "blue"
Emoji string // e.g. "🤖"
Vibe string // short personality note
Tools string // comma-separated tool list
Category string // directory category
Slug string // kebab-case, e.g. "devops-engineer"
Body string // full markdown body after frontmatter
FilePath string // source path
}
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 · 420 lines · 59 tokens per session scan A a7a8362d68e5
add-tool is a skill published in the GitHub repository caioreix/agency-cli (4 stars, last pushed 7mo ago), licensed MIT. It adds 59 tokens to every session and 3,446 once invoked, about $0.0002 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 2026-08-31.
add-tool compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| add-toolcaioreix/agency-cli | Skill | 4 | 7mo ago | MIT | A | 59 | Claude Code, Codex |
| imagegenopenai/codex | Skill | 134k | today | Apache-2.0 | A | 113 | Codex |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 79k | yesterday | MIT | A | 200 | Claude Code, Codex |
| playwright-climicrosoft/playwright | Skill | 100k | yesterday | Apache-2.0 | A | 19 | Claude Code |
| browser-automationopenclaw/openclaw | Skill | 394k | today | MIT | A | 36 | Claude Code |
| systematic-debuggingobra/superpowers | Skill | 314k | 4d ago | MIT | A | 21 | Claude Code |
| next-cache-components-adoptionvercel/next.js | Skill | 143k | today | MIT | A | 95 | Claude Code |