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 agentmods add instructions/microsoft/typespec-mcp/copilot-instructionsgit clone --depth 1 https://github.com/microsoft/typespec-mcpWhat 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 | $0.00202 | $0.00202 |
| Opus 5 | $0.00101 | $0.00101 |
| Sonnet 5 | $0.00040 | $0.00040 |
| Haiku 4.5 | $0.00020 | $0.00020 |
Grade A, and why
typespec-mcp copilot-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 3d 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
Working with Alloy Jsx files
This repository is built on alloy which use JSX to define components. This is NOT the same as React JSX, so you should not use React JSX syntax.
- Alloy syntax
- Base elements are to be imported from
@alloy-js/core - A generic node is defined as
Children - Use
<></>instead of<Fragment></Fragment> - DO NOT use any html elements like
<div>,<span>, etc. Use Alloy components instead. - Use
codestring template function to render raw string content
- Base elements are to be imported from
- Components should be structured as followed:
- in a
componentsfolder in the package - file should use
kebab-casefor the file name - component should be named using
PascalCase - if component needs props, an interface should be defined with the name
<ComponentName>Props - DO NOT destructure props in the component definition
- in a
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.
- 3d ago First seen · 17 lines · 202 tokens per session scan A f9ac77d21b99
typespec-mcp copilot-instructions.md is an instructions file published in the GitHub repository microsoft/typespec-mcp (51 stars, last pushed 9d ago), licensed MIT. It adds 202 tokens to every session, about $0.0010 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.
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