promptscript typescript.instructions.md

A set of TypeScript coding rules for a project that treats AI instructions as maintainable code. TypeScript is JavaScript with features for checking data types before programs run.

In plain words
What is it for?
Use it when writing or reviewing TypeScript in this project, especially for object definitions, union types, public functions, and type-safe handling of unknown data.
Why use it?
It keeps TypeScript code consistent and makes mistakes easier to catch by requiring explicit types and predictable export patterns.

Instructions file for GitHub Copilot

Install

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.

agentmods
npx agentmods add instructions/mrwogu/promptscript/typescript
Clone the repo
git clone --depth 1 https://github.com/mrwogu/promptscript

Made for: GitHub Copilot.

Per session 133 This file is loaded in full into every session.
When invoked 133 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00133 $0.00133
Opus 5 $0.00067 $0.00067
Sonnet 5 $0.00027 $0.00027
Haiku 4.5 $0.00013 $0.00013

Measured yesterday against content hash 8e2aa3afaa87, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

promptscript 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 yesterday.

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.

.github/instructions/typescript.instructions.md · 18 lines

What it actually says

TypeScript-specific rules

  • Strict mode enabled
  • Never use any type - use unknown with type guards
  • Use unknown with type guards instead of any
  • Prefer interface for object shapes
  • Use type for unions and intersections
  • Named exports only, no default exports
  • Explicit return types on public functions
Changes

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.

  1. yesterday First seen · 18 lines · 133 tokens per session scan A 8e2aa3afaa87

Subscribe to this mod's changes

promptscript typescript.instructions.md is an instructions file published in the GitHub repository mrwogu/promptscript (391 stars, last pushed 7d ago), licensed MIT. It adds 133 tokens to every session, about $0.0007 per session on Opus 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 2026-08-30.