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 azusachino/harus-skills --skill toolbeltgit clone --depth 1 https://github.com/azusachino/harus-skillsWrote 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/azusachino/harus-skills/toolbelt)<a href="https://agentmods.dev/skills/azusachino/harus-skills/toolbelt"><img src="https://agentmods.dev/badge/skills/azusachino/harus-skills/toolbelt/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/azusachino/harus-skills/toolbelt"><img src="https://agentmods.dev/badge/skills/azusachino/harus-skills/toolbelt.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 | $0.00032 | $0.04258 |
| Opus 5.5 | $0.00013 | $0.01703 |
| Sonnet 5.5 | $0.00006 | $0.00852 |
| Haiku 4.5 | $0.00003 | $0.00426 |
Grade A, and why
toolbelt scanned grade A with 1 finding 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
| `curl` (API testing) | `xh` | HTTP requests | How it starts
The opening of the file, as written. The whole thing — 216 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Toolbelt Skill
Prefer these tools for interactive terminal work. Check availability on the current machine; repository tooling and the host agent's editing rules take precedence over these defaults.
Table of Contents
- Resolve uncertainty
- Substitution table (always-on)
- Tooling discipline (carried from global defaults)
- Runtimes & package managers
- Search & navigate
- Edit text
- HTTP / API debugging
- GitHub and GitLab
- Data & SQL
- Debug & inspect
- Benchmark
- Domain & infra tools (know these exist)
- When NOT to substitute
Rule of thumb: classic tools for piping inside scripts that must be portable; modern tools for interactive/agent work where clarity and ergonomics win.
Resolve uncertainty
Use command -v, the installed tool's --help, and repository configuration to resolve missing tools or unfamiliar flags. Continue with a supported fallback when it preserves the requested result. Ask when the remaining uncertainty changes scope, risks user data, or requires authority the user has not supplied. A recipe here is not permission to install tools, load-test a service, or mutate remote state.
Substitution table (always-on)
Reach for the right-hand tool by default; fall back to the classic only when the modern one is absent.
| Instead of | Use | For |
|---|---|---|
ls / cat / du |
eza / bat / dust |
listing, viewing, disk usage |
grep / find |
ripgrep (rg) / fd |
text/file search |
grep for code structure |
ast-grep (sg) |
AST-aware search & rewrite |
sed (substitute) |
sd |
find & replace |
git diff |
delta — already wired as the pager |
diff/log/show/blame |
| a noisy reflow diff | difftastic (difft) |
AST diff, opt-in |
ps / dig / xxd |
procs / doggo / hexyl |
processes, DNS, hex |
curl (API testing) |
xh |
HTTP requests |
jq for non-JSON |
dasel |
YAML/TOML/XML/CSV query+convert |
wc -l (code count) |
tokei |
code statistics (LOC) |
| ad-hoc regex design | grex |
generate regular expressions |
| spell-check source | typos |
typo linting in code + docs |
| ad-hoc SQL | duckdb; psql/sqlx-cli per project |
data + migrations |
| benchmarking | hyperfine (CLI), oha (HTTP) |
perf checks |
python / pip / pipx |
uv / uvx |
Python runtime, deps, tools |
node / npm / npx |
bun / bunx |
JS/TS runtime, deps, tools |
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 Changed · +1 lines f2e9d20622f7
- 2mo ago Changed · +1 lines e7c59187aaa2
- 2mo ago Changed · +10 lines c1fdf69d3437
- 2mo ago Changed · -1 lines 0512e01b19ef
- 2mo ago Changed · -3 lines · -95 tokens per session 2227d3654d5e
- 2mo ago First seen · 208 lines · 127 tokens per session scan A b7d1584f2aa2
toolbelt is a skill published in the GitHub repository azusachino/harus-skills (5 stars, last pushed 3d ago), licensed MIT. It adds 32 tokens to every session and 4,258 once invoked, about $0.0001 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
toolbelt compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| toolbeltazusachino/harus-skills | Skill | 5 | 3d ago | MIT | A | 32 | Claude Code, Codex |
| imagegenopenai/codex | Skill | 135k | today | Apache-2.0 | A | 113 | Codex |
| playwright-climicrosoft/playwright | Skill | 100k | today | Apache-2.0 | A | 19 | Claude Code |
| browser-automationopenclaw/openclaw | Skill | 394k | today | MIT | A | 36 | Claude Code |
| local-ai-agentsmicrosoft/ai-agents-for-beginners | Skill | 80k | 7d ago | MIT | A | 200 | Claude Code, Codex |
| next-cache-components-adoptionvercel/next.js | Skill | 144k | today | MIT | A | 95 | Claude Code |
| chat-pet-sprite-creationmicrosoft/vscode | Skill | 195k | today | MIT | A | 53 | Claude Code, Codex |