Borrowing it
Nothing to install: this file belongs to stefaniuk/loadout. 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/stefaniuk/loadout/main/.github/instructions/typescript.instructions.mdgit clone --depth 1 https://github.com/stefaniuk/loadoutWrote 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/instructions/stefaniuk/loadout/typescript)<a href="https://agentmods.dev/instructions/stefaniuk/loadout/typescript"><img src="https://agentmods.dev/badge/instructions/stefaniuk/loadout/typescript/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/instructions/stefaniuk/loadout/typescript"><img src="https://agentmods.dev/badge/instructions/stefaniuk/loadout/typescript.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 | $0.13869 | $0.13869 |
| Opus 5.5 | $0.05548 | $0.05548 |
| Sonnet 5.5 | $0.02774 | $0.02774 |
| Haiku 4.5 | $0.01387 | $0.01387 |
Grade A, and why
loadout typescript.instructions.md 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 — 1,018 lines — stays where its author put it; the contents beside it link to each section on GitHub.
TypeScript Engineering Instructions (CLI + API + UI, framework-agnostic) 🟦
These instructions define the default engineering approach for building modern, production-grade TypeScript systems (services, CLIs, libraries, and web apps).
They must remain applicable to:
- Node.js services (REST/GraphQL/events), serverless, and workers
- Web apps (SPA/SSR), SDKs, and shared libraries
- Monorepos (workspaces) and single-package repos
- Mixed TS/JS repos during migration
They are non-negotiable unless an exception is explicitly documented (with rationale and expiry) in an ADR/decision record.
Identifier scheme. Every normative rule carries a unique tag in the form [TS-<prefix>-NNN], where the prefix maps to the containing section (for example OP for Operating Principles, LCL for Local-first developer experience, QG for Quality Gates, continuing through AI for AI-assisted expectations). Use these identifiers when referencing, planning, or validating requirements.
0. Quick reference (apply first) 🧠
This section exists so humans and AI assistants can reliably apply the most important rules even when context is tight.
- [TS-QR-001] Specification first: treat the specification as the source of truth for behaviour ([TS-OP-001]).
- [TS-QR-002] Small, safe changes: prefer small, explicit, testable changes ([TS-OP-002], [TS-OP-004]).
- [TS-QR-003] Fast feedback: local development and tests must be quick and confidence-building ([TS-OP-005], [TS-LCL-001]–[TS-LCL-007]).
- [TS-QR-004] Run the quality gates after any code/test change and iterate to clean ([TS-QG-001]–[TS-QG-006]).
- [TS-QR-005] Strict TypeScript:
strict: trueis non-negotiable; treatanyas a last resort ([TS-TSC-001]–[TS-TSC-004]). - [TS-QR-006] Validate at boundaries and reject ambiguous inputs ([TS-DATA-001]–[TS-DATA-003], [TS-BEH-007]–[TS-BEH-008]).
- [TS-QR-007] Deterministic outputs: stable ordering, stable formatting, no hidden randomness ([TS-OP-003], [TS-BEH-001]–[TS-BEH-002]).
- [TS-QR-008] Correct CLI streams: stdout for primary output, stderr for diagnostics ([TS-BEH-016]–[TS-BEH-018]).
- [TS-QR-009] Async correctness: no fire-and-forget promises; explicit timeouts on outbound calls ([TS-BEH-003]–[TS-BEH-006]).
- [TS-QR-010] No secrets in args or logs: use env vars or secret managers; never log secrets ([TS-SEC-005]–[TS-SEC-008]).
- [TS-QR-011] Local by default: no real cloud/network by default; use fakes/emulators; explicit integration mode switches ([TS-EXT-001]–[TS-EXT-004]).
- [TS-QR-012] Operational visibility: correlation IDs and structured logs for services ([TS-OBS-001]–[TS-OBS-007]).
- [TS-QR-013] Accessible UI by default: meet WCAG 2.2 AA expectations; keyboard-first and semantic HTML ([TS-UI-001]–[TS-UI-013]).
- [TS-QR-014] UI performance: design for Core Web Vitals and fast interaction feedback ([TS-UI-020]–[TS-UI-027]).
- [TS-QR-015] Function size limit: split functions exceeding ~50 lines or 3 levels of nesting ([TS-CODE-017]).
- [TS-QR-016] Module size limit: keep modules under ~500 lines excluding tests ([TS-CODE-018]).
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 · 1,018 lines · 13,869 tokens per session scan A 8d61f0cd603e
loadout typescript.instructions.md is an instructions file published in the GitHub repository stefaniuk/loadout (1 stars, last pushed yesterday), licensed MIT. It adds 13,869 tokens to every session, about $0.0555 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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