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 CassetteTapeCrackle/claude-starters --skill clean-code-tsgit clone --depth 1 https://github.com/CassetteTapeCrackle/claude-startersWrote 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/cassettetapecrackle/claude-starters/clean-code-ts)<a href="https://agentmods.dev/skills/cassettetapecrackle/claude-starters/clean-code-ts"><img src="https://agentmods.dev/badge/skills/cassettetapecrackle/claude-starters/clean-code-ts/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/cassettetapecrackle/claude-starters/clean-code-ts"><img src="https://agentmods.dev/badge/skills/cassettetapecrackle/claude-starters/clean-code-ts.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 | $0.00036 | $0.00342 |
| Opus 5.5 | $0.00014 | $0.00137 |
| Sonnet 5.5 | $0.00007 | $0.00068 |
| Haiku 4.5 | $0.00004 | $0.00034 |
Grade A, and why
clean-code-ts 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.
What it actually says
Clean-code TypeScript (depth)
On top of the base rules (strict tsconfig, ESLint+Prettier, Vitest).
Types
- No
any. Useunknownat boundaries and narrow. Prefertypealiases + discriminated unions for state over booleans/optionals. - Model impossible states out of existence (a union, not many independent flags). Exhaustiveness-check unions with a
neverdefault inswitch. - Derive types from runtime schemas (zod/TypeBox) at IO boundaries — one source of truth, not parallel
interface+ validator.
Correctness
strictNullCheckson; handlenull/undefinedexplicitly, no!non-null assertions outside tests.awaitevery promise or handle it; no floating promises.Promise.allfor independent async, not sequential awaits.- Readonly by default (
readonly,as const); immutable data flow.
Style
- Named exports over default (grep + refactor friendliness). Small modules; pure functions; early returns.
- Narrow function signatures — take exactly what's used, not the whole object.
Smells
anyoras SomeTypecasts → narrow or fix the type at the source.- Booleans multiplying into impossible combinations → discriminated union.
- A validator and an
interfacethat can drift → derive the type from the schema.
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 · 28 lines · 36 tokens per session scan A 90d7d9b8736f
clean-code-ts is a skill published in the GitHub repository CassetteTapeCrackle/claude-starters (1 stars, last pushed 2mo ago), licensed MIT. It adds 36 tokens to every session and 342 once invoked, about $0.0001 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.
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