U.S. Copyright Office rights evidence for AI agents with provenance and live CPRS verification.
Scored across 2 tools
The two tools have clearly distinct purposes: a free candidate search versus a paid comprehensive rights dossier. The descriptions explicitly contrast them, making misselection unlikely.
Both names follow a consistent verb_noun pattern (search_public_records, trace_public_rights). Minor deviation: 'search' vs 'trace' are different verbs but still predictable.
Two tools is borderline thin for a rights research service. Additional operations like retrieving a dossier by ID or listing past traces might improve usability.
The surface covers searching and dossier creation, but lacks operations to retrieve or list dossiers, which are common needs. This notable gap could hinder workflows.
Free bounded search for likely U.S. Copyright Office public records. Use to identify candidate works before specialist reconciliation; this does not build the paid rights dossier.
| Name | Required | Description | Default |
|---|---|---|---|
| year | No | ||
| limit | No | ||
| title | Yes | ||
| creator | No | ||
| workType | No |
| Name | Required | Description |
|---|---|---|
| query | Yes | |
| coverage | Yes | |
| freshness | Yes | |
| candidates | Yes | |
| legalNotice | Yes | |
| evidenceGaps | Yes | |
| schemaVersion | Yes |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations already declare readOnlyHint, openWorldHint and idempotentHint, so the safety profile is covered. The description adds two useful behavioral facts beyond that: the call is free and results are bounded, plus the hedge 'likely' signaling imperfect recall. It still omits result caps/pagination and any accuracy or coverage caveats, so it only modestly exceeds the annotation baseline.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Two sentences, zero filler, with the core purpose front-loaded and the scope boundary stated second. Every clause earns its place.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
An output schema exists, so return values need no explanation. However, with five undocumented parameters and no guidance on how filters combine or how results are bounded, the description leaves meaningful gaps for an agent trying to construct a correct query.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0% across five parameters, so the description carries the full burden of explaining title, creator, year, workType and limit. It says nothing about any of them beyond the vague word 'bounded', which loosely hints at the limit parameter. This is a clear gap for a multi-filter search.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
States a specific verb and resource ('bounded search for likely U.S. Copyright Office public records') and scopes it as free and candidate-level. It contrasts with the 'specialist reconciliation' / 'paid rights dossier' path, so an agent can tell it apart from a heavier rights tool, though it never names the sibling trace_public_rights directly.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Gives a clear when-to-use ('identify candidate works before specialist reconciliation') and an explicit when-not ('this does not build the paid rights dossier'). The alternative tool is implied rather than named, which keeps it short of a 5.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Use when an agent needs a film/TV public-record rights dossier, not a simple record lookup. Resolves the work, reconciles maintained Copyright Office evidence, builds only source-supported relationships, and exposes provenance, ambiguity and bounded freshness. $2 per completed authorized invocation. Not legal clearance, definitive ownership, exhaustive chain of title, or private-contract analysis.
| Name | Required | Description | Default |
|---|---|---|---|
| year | No | ||
| limit | No | ||
| title | Yes | ||
| creator | No | ||
| workType | No |
| Name | Required | Description |
|---|---|---|
| edges | Yes | |
| query | Yes | |
| state | Yes | |
| status | Yes | |
| methods | Yes | |
| records | Yes | |
| traceId | Yes | |
| coverage | Yes | |
| evidence | Yes | |
| dossierId | Yes | |
| freshness | Yes | |
| operation | Yes | |
| candidates | Yes | |
| provenance | Yes | |
| legalNotice | Yes | |
| limitations | Yes | |
| evidenceGaps | Yes | |
| resolvedWork | No | |
| corpusVersion | No | |
| nonInferences | Yes | |
| schemaVersion | Yes | |
| canonicalRequest | Yes | |
| normalizedParties | Yes | |
| unresolvedQuestions | Yes |
Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?
Annotations only cover safety profile (readOnly, idempotent, openWorld); the description adds substantive behavior: it reconciles Copyright Office evidence, builds only source-supported relationships, exposes provenance/ambiguity/bounded freshness, and discloses a $2-per-completed-authorized-invocation cost. That is meaningfully more than the structured fields provide.
Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.
Is the description appropriately sized, front-loaded, and free of redundancy?
Front-loaded with the usage trigger, followed by a compact behavior clause, cost, and a boundary list. Dense but every clause carries information; slightly long but no filler sentences.
Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.
Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?
An output schema exists, so return-value explanation is not required, and the description covers scope, cost, and limitations well. The remaining gap is the undocumented input parameters, which is the one area an agent still lacks guidance on.
Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.
Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 0% across five parameters (title, year, creator, workType, limit), and the description adds almost no parameter meaning beyond a vague 'resolves the work'. It never explains how year, creator, workType narrow the search or what limit controls, so it fails to compensate for the coverage gap.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.
Does the description clearly state what the tool does and how it differs from similar tools?
States a specific verb and resource ('Trace public rights evidence' / 'film/TV public-record rights dossier') and explicitly contrasts with the sibling capability by saying it is 'not a simple record lookup'. An agent can distinguish this from search_public_records without opening the schema.
Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.
Does the description explain when to use this tool, when not to, or what alternatives exist?
Gives a clear trigger ('Use when an agent needs a film/TV public-record rights dossier') and a set of exclusions (not legal clearance, ownership, chain of title, private contracts). It does not name the sibling tool search_public_records explicitly as the alternative for simple lookups, so routing is implied rather than spelled out.
Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
filmrightsproof.search_public_records1 field changedOutput schema / (root)Previous value: -nullNew value: +{
+ "additionalProperties": false,
+ "properties": {
+ "candidates": {
+ "items": {
+ "additionalProperties": true,
+ "properties": {
+ "id": {
+ "type": "string"
+ },
+ "publicationYear": {
+ "anyOf": [
+ {
+ "type": "integer"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "reasons": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "registrationNumber": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "score": {
+ "type": "number"
+ },
+ "title": {
+ "type": "string"
+ },
+ "workType": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ }
+ },
+ "required": [
+ "id",
+ "title"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "coverage": {
+ "type": "object"
+ },
+ "evidenceGaps": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "freshness": {
+ "additionalProperties": true,
+ "properties": {
+ "currentEvidenceUsable": {
+ "type": "boolean"
+ },
+ "currentLookupAttempted": {
+ "type": "boolean"
+ },
+ "currentLookupVerified": {
+ "description": "Narrow compatibility summary. True only when the bounded current lookup completed without normalization rejection; it does not mean exhaustive coverage.",
+ "type": "boolean"
+ },
+ "error": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "evidenceStatus": {
+ "enum": [
+ "usable",
+ "usable_no_qualifying_match",
+ "partial",
+ "partial_no_qualifying_match",
+ "zero_hits",
+ "normalization_failed",
+ "unavailable"
+ ]
+ },
+ "fallback": {
+ "type": "object"
+ },
+ "observation": {
+ "type": "object"
+ },
+ "observedAt": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "parsingStatus": {
+ "enum": [
+ "succeeded",
+ "failed",
+ "not_completed",
+ "not_attempted"
+ ]
+ },
+ "queryCompletedAt": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "queryStartedAt": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "schemaVersion": {
+ "const": "filmrightsproof-freshness.v2"
+ },
+ "searchScope": {
+ "anyOf": [
+ {
+ "type": "object"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "sourceMix": {
+ "type": "object"
+ },
+ "transportStatus": {
+ "enum": [
+ "succeeded",
+ "failed",
+ "not_attempted"
+ ]
+ }
+ },
+ "required": [
+ "schemaVersion",
+ "currentLookupAttempted",
+ "currentLookupVerified",
+ "currentEvidenceUsable",
+ "transportStatus",
+ "parsingStatus",
+ "evidenceStatus",
+ "observation",
+ "fallback"
+ ],
+ "type": "object"
+ },
+ "legalNotice": {
+ "type": "string"
+ },
+ "query": {
+ "type": "object"
+ },
+ "schemaVersion": {
+ "const": "public-record-search.v1"
+ }
+ },
+ "required": [
+ "schemaVersion",
+ "query",
+ "candidates",
+ "coverage",
+ "freshness",
+ "evidenceGaps",
+ "legalNotice"
+ ],
+ "type": "object"
+}filmrightsproof.trace_public_rights1 field changedOutput schema / (root)Previous value: -nullNew value: +{
+ "additionalProperties": true,
+ "properties": {
+ "candidates": {
+ "items": {
+ "additionalProperties": true,
+ "properties": {
+ "id": {
+ "type": "string"
+ },
+ "publicationYear": {
+ "anyOf": [
+ {
+ "type": "integer"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "reasons": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "registrationNumber": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "score": {
+ "type": "number"
+ },
+ "title": {
+ "type": "string"
+ },
+ "workType": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ }
+ },
+ "required": [
+ "id",
+ "title"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "canonicalRequest": {
+ "type": "object"
+ },
+ "corpusVersion": {
+ "type": "integer"
+ },
+ "coverage": {
+ "type": "object"
+ },
+ "dossierId": {
+ "type": "string"
+ },
+ "edges": {
+ "items": {
+ "additionalProperties": true,
+ "properties": {
+ "id": {
+ "type": "string"
+ },
+ "sourceSemantics": {
+ "type": "object"
+ },
+ "support": {
+ "items": {
+ "type": "object"
+ },
+ "minItems": 1,
+ "type": "array"
+ },
+ "type": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "id",
+ "type",
+ "support",
+ "sourceSemantics"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "evidence": {
+ "additionalProperties": false,
+ "properties": {
+ "cancellations": {
+ "items": {
+ "additionalProperties": true,
+ "properties": {
+ "id": {
+ "type": "string"
+ },
+ "recordType": {
+ "type": "string"
+ },
+ "source": {
+ "type": "object"
+ },
+ "title": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "id",
+ "recordType",
+ "title",
+ "source"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "recordations": {
+ "items": {
+ "additionalProperties": true,
+ "properties": {
+ "id": {
+ "type": "string"
+ },
+ "recordType": {
+ "type": "string"
+ },
+ "source": {
+ "type": "object"
+ },
+ "title": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "id",
+ "recordType",
+ "title",
+ "source"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "registrations": {
+ "items": {
+ "additionalProperties": true,
+ "properties": {
+ "id": {
+ "type": "string"
+ },
+ "recordType": {
+ "type": "string"
+ },
+ "source": {
+ "type": "object"
+ },
+ "title": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "id",
+ "recordType",
+ "title",
+ "source"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "renewals": {
+ "items": {
+ "additionalProperties": true,
+ "properties": {
+ "id": {
+ "type": "string"
+ },
+ "recordType": {
+ "type": "string"
+ },
+ "source": {
+ "type": "object"
+ },
+ "title": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "id",
+ "recordType",
+ "title",
+ "source"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "terminations": {
+ "items": {
+ "additionalProperties": true,
+ "properties": {
+ "id": {
+ "type": "string"
+ },
+ "recordType": {
+ "type": "string"
+ },
+ "source": {
+ "type": "object"
+ },
+ "title": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "id",
+ "recordType",
+ "title",
+ "source"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ }
+ },
+ "required": [
+ "registrations",
+ "renewals",
+ "recordations",
+ "terminations",
+ "cancellations"
+ ],
+ "type": "object"
+ },
+ "evidenceGaps": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "freshness": {
+ "additionalProperties": true,
+ "properties": {
+ "currentEvidenceUsable": {
+ "type": "boolean"
+ },
+ "currentLookupAttempted": {
+ "type": "boolean"
+ },
+ "currentLookupVerified": {
+ "description": "Narrow compatibility summary. True only when the bounded current lookup completed without normalization rejection; it does not mean exhaustive coverage.",
+ "type": "boolean"
+ },
+ "error": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "evidenceStatus": {
+ "enum": [
+ "usable",
+ "usable_no_qualifying_match",
+ "partial",
+ "partial_no_qualifying_match",
+ "zero_hits",
+ "normalization_failed",
+ "unavailable"
+ ]
+ },
+ "fallback": {
+ "type": "object"
+ },
+ "observation": {
+ "type": "object"
+ },
+ "observedAt": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "parsingStatus": {
+ "enum": [
+ "succeeded",
+ "failed",
+ "not_completed",
+ "not_attempted"
+ ]
+ },
+ "queryCompletedAt": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "queryStartedAt": {
+ "anyOf": [
+ {
+ "type": "string"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "schemaVersion": {
+ "const": "filmrightsproof-freshness.v2"
+ },
+ "searchScope": {
+ "anyOf": [
+ {
+ "type": "object"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "sourceMix": {
+ "type": "object"
+ },
+ "transportStatus": {
+ "enum": [
+ "succeeded",
+ "failed",
+ "not_attempted"
+ ]
+ }
+ },
+ "required": [
+ "schemaVersion",
+ "currentLookupAttempted",
+ "currentLookupVerified",
+ "currentEvidenceUsable",
+ "transportStatus",
+ "parsingStatus",
+ "evidenceStatus",
+ "observation",
+ "fallback"
+ ],
+ "type": "object"
+ },
+ "legalNotice": {
+ "type": "string"
+ },
+ "limitations": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "methods": {
+ "type": "object"
+ },
+ "nonInferences": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ },
+ "normalizedParties": {
+ "items": {
+ "additionalProperties": false,
+ "properties": {
+ "name": {
+ "type": "string"
+ },
+ "roles": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ }
+ },
+ "required": [
+ "name"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "operation": {
+ "const": "trace_public_rights"
+ },
+ "provenance": {
+ "items": {
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "query": {
+ "type": "object"
+ },
+ "records": {
+ "items": {
+ "additionalProperties": true,
+ "properties": {
+ "id": {
+ "type": "string"
+ },
+ "recordType": {
+ "type": "string"
+ },
+ "source": {
+ "type": "object"
+ },
+ "title": {
+ "type": "string"
+ }
+ },
+ "required": [
+ "id",
+ "recordType",
+ "title",
+ "source"
+ ],
+ "type": "object"
+ },
+ "type": "array"
+ },
+ "resolvedWork": {
+ "anyOf": [
+ {
+ "type": "object"
+ },
+ {
+ "type": "null"
+ }
+ ]
+ },
+ "schemaVersion": {
+ "const": "trace-public-rights.v1"
+ },
+ "state": {
+ "type": "object"
+ },
+ "status": {
+ "enum": [
+ "recorded_lineage_found",
+ "partial_recorded_lineage",
+ "ambiguous_work_identity",
+ "no_match_within_search_scope",
+ "insufficient_public_evidence"
+ ]
+ },
+ "traceId": {
+ "type": "string"
+ },
+ "unresolvedQuestions": {
+ "items": {
+ "type": "string"
+ },
+ "type": "array"
+ }
+ },
+ "required": [
+ "schemaVersion",
+ "operation",
+ "traceId",
+ "dossierId",
+ "status",
+ "query",
+ "canonicalRequest",
+ "candidates",
+ "records",
+ "evidence",
+ "normalizedParties",
+ "edges",
+ "provenance",
+ "freshness",
+ "coverage",
+ "unresolvedQuestions",
+ "nonInferences",
+ "evidenceGaps",
+ "limitations",
+ "methods",
+ "state",
+ "legalNotice"
+ ],
+ "type": "object"
+}filmrightsproof.search_public_recordsfilmrightsproof.trace_public_rightsProvenance-backed EU and UK legislation for AI agents, addressable to the individual provision.
Bitcoin-anchored, tamper-evident audit-permanence layer for AI agents, FRE 902(13)/(14)-shaped.
Machine-native utility network: verified evidence services for autonomous agents.
Prove you made it first. Blockchain Timestamp creative work via Claude or any MCP-enabled AI Agent.
Add one secure layer between your agents and this server.
