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 skills add mochow13/keen-agent --skill mcp-exagit clone --depth 1 https://github.com/mochow13/keen-agentWrote 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/mochow13/keen-agent/mcp-exa)<a href="https://agentmods.dev/skills/mochow13/keen-agent/mcp-exa"><img src="https://agentmods.dev/badge/skills/mochow13/keen-agent/mcp-exa/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/mochow13/keen-agent/mcp-exa"><img src="https://agentmods.dev/badge/skills/mochow13/keen-agent/mcp-exa.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 | $0.00018 | $0.00417 |
| Opus 5 | $0.00009 | $0.00209 |
| Sonnet 5 | $0.00004 | $0.00083 |
| Haiku 4.5 | $0.00002 | $0.00042 |
Grade A, and why
mcp:exa 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 8d 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
Calling tools
Before calling call_mcp_tool, always read the selected tool's schema file: schemas/<tool_name>.json.
Strictly follow the schema to pass the correct arguments to the tool.
Use the exact tool name from the "Available tools" table below. Do not guess,
abbreviate, or transform names (for example, do not swap - for _ or do not change case).
If call_mcp_tool returns "tool not found", re-read this file and use the exact name of the correct tool from the table.
Available tools
| Tool name | Description |
|---|---|
| web_search_exa | Search the web for any topic and get clean, ready-to-use content. Best for: Finding current information, news, facts, people, companies, or answering questions about any topic. Returns: Clean text content from top search results. Query tips: describe the ideal page, not keywords. "blog post comparing React and Vue performance" not "React vs Vue". Use category:people / category:company to search through Linkedin profiles / companies respectively. If highlights are insufficient, follow up with web_fetch_exa on the best URLs. |
| web_search_advanced_exa | Advanced web search with full control over filters, domains, dates, and content options. Best for: When you need specific filters like date ranges, domain restrictions, or category filters. Not recommended for: Simple searches - use web_search_exa instead. Returns: Search results with optional highlights, summaries, and subpage content. |
| web_fetch_exa | Read a webpage's full content as clean markdown. Use after web_search_exa when highlights are insufficient or to read any URL. Best for: Extracting full content from known URLs. Batch multiple URLs in one call. Returns: Clean text content and metadata from the page(s). |
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 8d ago First seen · 19 lines · 18 tokens per session scan A e9716187f9fb
mcp:exa is a skill published in the GitHub repository mochow13/keen-agent (2 stars, last pushed 16d ago), licensed MIT. It adds 18 tokens to every session and 417 once invoked, about $0.0001 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 2026-08-31.
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