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/windsurfgit 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/windsurf)<a href="https://agentmods.dev/agents/cantara/kcp-harness/windsurf"><img src="https://agentmods.dev/badge/agents/cantara/kcp-harness/windsurf.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 | $0.00310 |
| Opus 5 | $0.00000 | $0.00155 |
| Sonnet 5 | $0.00000 | $0.00062 |
| Haiku 4.5 | $0.00000 | $0.00031 |
Grade A, and why
windsurf 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 4d 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
Windsurf
Windsurf (Codeium) uses a global MCP config — not per-project. The harness generates a snippet to merge into the global config, plus a .windsurfrules file for project-level governance instructions.
Setup
kcp-harness integrate windsurf
This generates:
windsurf-mcp-snippet.json (not committed)
A snippet to merge into ~/.codeium/windsurf/mcp_config.json:
{
"kcp-harness": {
"command": "npx",
"args": ["kcp-harness", "serve"]
}
}
Merge it into your global config:
{
"mcpServers": {
"kcp-harness": { ... }
}
}
.windsurfrules (committed)
Project-level governance instructions for Windsurf's Cascade agent:
# KCP Knowledge Governance
1. Always call kcp_plan or kcp_load before reading governed files
2. The harness intercepts tool calls and routes through the planner
3. Budget and temporal governance are enforced automatically
...
Why Global?
Windsurf doesn't support per-project MCP config files. The MCP server config lives in ~/.codeium/windsurf/mcp_config.json and applies to all projects. The .windsurfrules file provides project-specific governance instructions.
After modifying the global config, restart Windsurf.
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.
- 4d ago First seen · 53 lines · 0 tokens per session scan A 10aafd7ffd01
windsurf is an agent published in the GitHub repository Cantara/kcp-harness (0 stars, last pushed 10d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 310 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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