← The evidence ledger
Evidence row 1479262
Observed , by probe.mcp/1.
- Kind
- mcp.tools
- About
- endpoint a2810b73-cfe0-4b26-ab95-fbe6ed1e0e66
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 091d5765a50409d325f0dff808b9dd966eb60b508365695270016eea23896858
- Leaf
- 0x8569d40d99619c5e7ba5476385b7eef21c24c2ad33cbd49ae4c7a7611896e0a1
What was observed
{
"count": 4,
"tools": [
{
"description": "Check an agent skill (SKILL.md with its scripts and references) or AGENTS.md, CLAUDE.md, .cursorrules before loading it: prompt injection, curl | bash, encoded commands, credential theft, exfiltration, hardcoded keys, persistence. Paste the files or give one URL. Costs US$0.005 in USDC on Base (x402); nothing is executed.",
"inputSchema": {
"properties": {
"files": {
"description": "The skill files, e.g. [{path: 'SKILL.md', content: '...'}] (max 50, 256 KB)",
"items": {
"properties": {
"content": {
"type": "string"
},
"path": {
"type": "string"
}
},
"required": [
"path",
"content"
],
"type": "object"
},
"type": "array"
},
"pinned": {
"additionalProperties": {
"type": "string"
},
"description": "Path to fingerprint from a previous audit",
"type": "object"
},
"url": {
"description": "Or a public URL of one raw text file",
"format": "uri",
"type": "string"
}
},
"type": "object"
},
"name": "audit_agent_skill"
},
{
"description": "Check an MCP server for tool poisoning before you connect: hidden instructions, secrecy, sensitive-file access, cross-tool shadowing and rug pulls. Pass its URL (we list its tools read-only) or paste its tools. Optional pinned fingerprints detect changed tools. Costs US$0.01 in USDC on Base (x402); servers that cannot be listed are not charged.",
"inputSchema": {
"properties": {
"instructions": {
"description": "Server instructions, if pasting",
"type": "string"
},
"pinned": {
"additionalProperties": {
"type": "string"
},
"description": "Tool name to fingerprint from a previous audit",
"type": "object"
},
"tools": {
"description": "Or the tools/list result, pasted",
"items": {
"type": "object"
},
"type": "array"
},
"url": {
"description": "Streamable HTTP endpoint of the MCP server",
"format": "uri",
"type": "string"
}
},
"type": "object"
},
"name": "audit_mcp_server"
},
{
"description": "Scan HTML or text you already have (an email, a document, a tool result) for prompt injection. Returns the risk report and the cleaned text wrapped as untrusted data. Costs US$0.002 in USDC on Base (x402). Max 256 KB.",
"inputSchema": {
"properties": {
"content": {
"description": "The HTML or text to scan",
"type": "string"
},
"format": {
"enum": [
"html",
"text"
],
"type": "string"
},
"return_text": {
"description": "Include the cleaned text (default true)",
"type": "boolean"
},
"url": {
"description": "Where the content came from (optional)",
"type": "string"
}
},
"required": [
"content"
],
"type": "object"
},
"name": "check_prompt_injection"
},
{
"description": "Fetch a public web page or PDF and return it as clean markdown with hidden text, invisible characters and data-exfiltration links removed, plus a prompt-injection risk report. Costs US$0.005 in USDC on Base (x402); pages that cannot be read are not charged. Respects robots.txt.",
"inputSchema": {
"properties": {
"format": {
"description": "markdown keeps links; text drops them",
"enum": [
"markdown",
"text"
],
"type": "string"
},
"url": {
"description": "Public http(s) URL",
"format": "uri",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"name": "read_url"
}
]
}What the leaf hashes
{"body":"091d5765a50409d325f0dff808b9dd966eb60b508365695270016eea23896858","id":1479262,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793433867715974,"prev":null,"subject":"a2810b73-cfe0-4b26-ab95-fbe6ed1e0e66","subject_kind":"endpoint"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.