Borrowing it
Nothing to install: this file belongs to shyamsridhar123/agentsmith-cli. 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/shyamsridhar123/agentsmith-cli/main/.github/skills/copilot-sdk/SKILL.mdgit clone --depth 1 https://github.com/shyamsridhar123/agentsmith-cliWrote 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/shyamsridhar123/agentsmith-cli/copilot-sdk)<a href="https://agentmods.dev/skills/shyamsridhar123/agentsmith-cli/copilot-sdk"><img src="https://agentmods.dev/badge/skills/shyamsridhar123/agentsmith-cli/copilot-sdk/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/shyamsridhar123/agentsmith-cli/copilot-sdk"><img src="https://agentmods.dev/badge/skills/shyamsridhar123/agentsmith-cli/copilot-sdk.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Data Exfiltration · line 270 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.00078 | $0.02117 |
| Opus 5.5 | $0.00031 | $0.00847 |
| Sonnet 5.5 | $0.00016 | $0.00423 |
| Haiku 4.5 | $0.00008 | $0.00212 |
Grade A, and why
copilot-sdk 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 2mo 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 — 343 lines — stays where its author put it; the contents beside it link to each section on GitHub.
GitHub Copilot SDK
Build AI-powered applications that leverage Copilot's agentic workflows. The SDK exposes the same engine behind Copilot CLI—a production-tested agent runtime you can invoke programmatically.
Status: Technical Preview
When to Use This Skill
- Creating applications that need programmatic access to GitHub Copilot
- Building custom AI agents with tool integration
- Developing CLI tools or backends powered by Copilot
- Integrating Copilot capabilities into existing applications
Prerequisites
- GitHub Copilot Subscription - Required for SDK usage
- Copilot CLI - Must be installed and in PATH (installation guide)
Installation
| Language | Package | Command |
|---|---|---|
| TypeScript/Node.js | @github/copilot-sdk |
npm install @github/copilot-sdk |
| Python | github-copilot-sdk |
pip install github-copilot-sdk |
| Go | github.com/github/copilot-sdk/go |
go get github.com/github/copilot-sdk/go |
| .NET | GitHub.Copilot.SDK |
dotnet add package GitHub.Copilot.SDK |
Architecture
Your Application → SDK Client → JSON-RPC → Copilot CLI (server mode)
Quick Start Examples
TypeScript
import { CopilotClient } from "@github/copilot-sdk";
const client = new CopilotClient();
await client.start();
const session = await client.createSession({ model: "gpt-5" });
session.on((event) => {
if (event.type === "assistant.message") {
console.log(event.data.content);
} else if (event.type === "session.idle") {
// Session finished processing
}
});
await session.send({ prompt: "What is 2+2?" });
await session.destroy();
await client.stop();
Python
from copilot import CopilotClient
client = CopilotClient()
await client.start()
session = await client.create_session({"model": "gpt-5"})
def on_event(event):
if event["type"] == "assistant.message":
print(event["data"]["content"])
session.on(on_event)
await session.send({"prompt": "What is 2+2?"})
await session.destroy()
await client.stop()
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.
- 2mo ago First seen · 343 lines · 78 tokens per session scan A 318b5e09fe88
copilot-sdk is a skill published in the GitHub repository shyamsridhar123/agentsmith-cli (17 stars, last pushed 8d ago), licensed MIT. It adds 78 tokens to every session and 2,117 once invoked, about $0.0003 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 2026-08-30.
copilot-sdk compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| copilot-sdkshyamsridhar123/agentsmith-cli | Skill | 17 | 8d ago | MIT | A | 78 | Claude Code, Codex |
| create-ts-entry-pointjeffsenso/prestashop-skills | Skill | 6 | 3d ago | MIT | A | 60 | Claude Code, Codex |
| date-threshold-arithmeticfabioc-aloha/Alex_Skill_Mall | Skill | 5 | yesterday | MIT | A | 16 | Claude Code, Codex |
| phoenix-typescriptAll-The-Vibes/ATV-Phoenix | Skill | 6 | 17d ago | MIT | A | 115 | Claude Code, Codex |
| quality-gates-typescriptSebastienDegodez/skraft-plugin | Skill | 13 | yesterday | GPL-3.0 | A | 136 | Claude Code |
| mocking-inprocess-typescriptSebastienDegodez/skraft-plugin | Skill | 13 | yesterday | GPL-3.0 | A | 90 | Claude Code |
| mocking-microcks-typescriptSebastienDegodez/skraft-plugin | Skill | 13 | yesterday | GPL-3.0 | A | 80 | Claude Code |