Build and sign a four-axis AttributionPrimitive for an action. Axes: D (data sources), P (protocol modules), G (delegation chain), C (compute providers). Returns the complete signed object.
AI agents invoke aps_construct_attribution_primitive to trigger actions in Agent Passport System — Cryptographic Identity for AI Agents. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.
| Parameter | Type | Required | Description |
|---|---|---|---|
axes | object | Yes | Four-axis content. See spec §1.2 for entry shapes per axis. |
action | object | Yes | Action identity tuple; the action_ref is derived as sha256(canonical(this)) |
issuer | string | Yes | Issuer DID (gateway or agent producing the receipt) |
timestamp | string | — | ISO-8601 UTC with ms precision + Z (§2.5). Defaults to now(). |
issuer_private_key | string | Yes | Ed25519 private key hex that signs the envelope |
Parameters from the server's own tool schema.
This tool executes a complex cryptographic operation that constructs and signs an identity primitive. While it doesn't directly delete data (Destructive) or move money (Financial), it performs a non-trivial operation whose effects depend on the arguments supplied (which axes, what delegation chains, what compute providers are specified). Misuse could create fraudulent attribution claims or forge delegation authority.
From the tool's definition Tool 'builds and signs' a cryptographic AttributionPrimitive object across four axes (data sources, protocol modules, delegation chain, compute providers) and 'returns the complete signed object.' This constructs and cryptographically commits to an…
Risk signalsHigh parameter count (13 properties)
Documented attack patterns abuse exactly the kind of access aps_construct_attribution_primitive gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Agent Passport System — Cryptographic Identity for AI Agents, and nothing reaches the server without passing your rules. This is the rule we recommend for aps_construct_attribution_primitive:
{
"version": "1",
"default": "deny",
"tools": {
"aps_construct_attribution_primitive": {
"limits": [
{
"counter": "aps_construct_attribution_primitive_rate",
"window": "minute",
"max": 10,
"scope": "grant"
}
]
}
}
}aps_construct_attribution_primitive stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
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Build and sign a four-axis AttributionPrimitive for an action. Axes: D (data sources), P (protocol modules), G (delegation chain), C (compute providers). Returns the complete signed object. It is categorised as a Execute tool in the Agent Passport System — Cryptographic Identity for AI Agents MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
aps_construct_attribution_primitive accepts 5 parameters: axes, action, issuer, timestamp, issuer_private_key. Required: axes, action, issuer, issuer_private_key. The full parameter table on this page comes from the server's own tool schema.
Register the Agent Passport System — Cryptographic Identity for AI Agents MCP server in PolicyLayer and add a rule for aps_construct_attribution_primitive: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Agent Passport System — Cryptographic Identity for AI Agents. Nothing to install.
aps_construct_attribution_primitive is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the aps_construct_attribution_primitive rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for aps_construct_attribution_primitive. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
aps_construct_attribution_primitive is provided by the Agent Passport System — Cryptographic Identity for AI Agents MCP server (https://mcp.aeoess.com/sse). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Agent Passport System — Cryptographic Identity for AI Agents, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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