Borrowing it
Nothing to install: this file belongs to KSEGIT/Version-Sentinel. 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/KSEGIT/Version-Sentinel/main/.github/copilot-instructions.mdgit clone --depth 1 https://github.com/KSEGIT/Version-SentinelWrote 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/ksegit/version-sentinel/copilot-instructions)<a href="https://agentmods.dev/instructions/ksegit/version-sentinel/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/ksegit/version-sentinel/copilot-instructions/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/ksegit/version-sentinel/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/ksegit/version-sentinel/copilot-instructions.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 | $0.00411 | $0.00411 |
| Opus 5.5 | $0.00164 | $0.00164 |
| Sonnet 5.5 | $0.00082 | $0.00082 |
| Haiku 4.5 | $0.00041 | $0.00041 |
Grade A, and why
Version-Sentinel 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 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
Version Sentinel
This workspace uses version-sentinel: dependency edits and install commands are blocked (via workspace hooks) until the target version is verified against its upstream registry and recorded.
When a tool call is BLOCKED with "version-sentinel"
- Look up the latest version of the package on its upstream registry:
- npm → npmjs.com
- pip / pyproject → pypi.org
- cargo → crates.io
- csproj → nuget.org
- Record the check by running in the terminal:
bash scripts/vs-record.sh <ecosystem> <pkg> <version> <source-url>The source must be anhttp(s)://URL you actually saw, orintentional: <reason>for deliberate pins. - Retry with the exact version you recorded. If the blocked input omitted the version or used a floating tag such as
latest, rewrite it first. For example, usenpm install [email protected], notnpm install lodashornpm install lodash@latest.
Local paths, URLs, git sources, and workspace dependencies are outside registry-version checks. A NuGet PackageReference without Version may use Central Package Management, so the manifest gate ignores that form.
Intentional pins
To deliberately install a non-latest version (CVE mitigation, compatibility), record with intentional: <reason> as the source. These show as intentional-pin, not DRIFT, in audits.
Audit
Run bash scripts/check-versions.sh before tagging a release. It scans package.json, requirements*.txt, constraints*.txt, pyproject.toml, Cargo.toml, *.csproj, *.fsproj, and *.vbproj and reports drift without blocking.
Escape hatch
Set VS_DISABLE=1 in the environment to disable blocking for a session (throwaway work only, with the user's awareness).
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 Changed · +2 lines · +81 tokens per session 36c6bc7988d4
- 1mo ago First seen · 28 lines · 330 tokens per session scan A 8114742bd8b2
Version-Sentinel copilot-instructions.md is an instructions file published in the GitHub repository KSEGIT/Version-Sentinel (6 stars, last pushed 26d ago), licensed MIT. It adds 411 tokens to every session, about $0.0016 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.
Other instructions, from other repositories
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, cache eligibility and rollout and applying the notice (cutover).
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
deepseek-harness AGENTS.md
AGENTS.md instructions for deepseek-ai/deepseek-harness, covering agents.md, pre-stable apis and released session data, repository layout, commands and host sandbox failures.
vscode copilot-instructions.md
Copilot instructions for microsoft/vscode, covering vs code copilot instructions, project overview, root folders, core architecture (src/ folder) and built-in extensions (extensions/ folder).