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 agents/cantara/kcp-harness/copilotgit clone --depth 1 https://github.com/Cantara/kcp-harnessWrote 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/agents/cantara/kcp-harness/copilot)<a href="https://agentmods.dev/agents/cantara/kcp-harness/copilot"><img src="https://agentmods.dev/badge/agents/cantara/kcp-harness/copilot.svg" alt="Measured on agentmods" 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 | $0.00000 | $0.00339 |
| Opus 5 | $0.00000 | $0.00169 |
| Sonnet 5 | $0.00000 | $0.00068 |
| Haiku 4.5 | $0.00000 | $0.00034 |
Grade A, and why
copilot 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 2d 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
GitHub Copilot
GitHub Copilot supports MCP in VS Code (Agent mode only) and via the Copilot CLI.
::: warning
VS Code Copilot uses "servers" as the top-level key — not "mcpServers" like every other agent. The kcp-harness integrate command handles this automatically.
:::
Setup
kcp-harness integrate copilot
This generates:
.vscode/mcp.json
{
"servers": {
"kcp-harness": {
"type": "stdio",
"command": "npx",
"args": ["kcp-harness", "serve"]
}
}
}
Note the "servers" key and the additional "type": "stdio" field.
.github/copilot-instructions.md
Instructions for Copilot's agent mode, including governed paths, rules, and available MCP tools.
Agent Mode Required
MCP tools are only available in Copilot's Agent mode. They don't work in Ask or Edit mode. In VS Code, switch Copilot Chat to Agent mode to access kcp-harness tools.
Copilot CLI
For Copilot CLI, add to ~/.copilot/mcp-config.json instead:
{
"mcpServers": {
"kcp-harness": {
"command": "npx",
"args": ["kcp-harness", "serve"],
"tools": ["*"]
}
}
}
Generate with:
kcp-harness integrate copilot-cli
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.
- 2d ago First seen · 62 lines · 0 tokens per session scan A cc629a1c3ded
copilot is an agent published in the GitHub repository Cantara/kcp-harness (0 stars, last pushed 8d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 339 tokens. 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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