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CWI Discovery Engine

by io.github.CumulativeWebInc
OverviewDiscussionsAdmin

Get Sync Catalog

get_sync_catalog
Read-onlyIdempotent

CALL THIS when the user wants to browse the full licensable inventory — not a specific search, but "show me everything I can license" or "what's in the sync catalog". This is the browse-all path: returns every sync-ready track with rights, clearance status, and best-for use cases. Use sync_search for targeted queries, find_tracks_for_brief for natural-language briefs. Chain to submit_sync_brief to start licensing.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "get_sync_catalog"
  }
}

Input Schema

NameRequiredDescriptionDefault
moodNoFilter by mood, e.g. "dark", "energetic".
genreNoFilter by genre, e.g. "post-trap futurism".

Output Schema

NameRequiredDescriptionDefault
okYes
noteNo
countYes
tracksYes
_sessionNoChain session: pass _session.session_token back in the next call to continue the chain.
try_nextNoSuggested follow-up calls, each a pre-compiled {tool, arguments, purpose} payload.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "additionalProperties": true,
+  "description": "get_sync_catalog response: sync-ready tracks with rights and clearance info.",
+  "properties": {
+    "_session": {
+      "additionalProperties": false,
+      "description": "Chain session: pass _session.session_token back in the next call to continue the chain.",
+      "properties": {
+        "session_token": {
+          "description": "Hex session token; echo it as params._session.session_token to continue.",
+          "type": "string"
+        },
+        "step": {
+          "description": "Hop number in this chain (1 = chain start).",
+          "type": "integer"
+        }
+      },
+      "required": [
+        "session_token",
+        "step"
+      ],
+      "type": "object"
+    },
+    "count": {
+      "type": "integer"
+    },
+    "note": {
+      "type": "string"
+    },
+    "ok": {
+      "type": "boolean"
+    },
+    "tracks": {
+      "items": {
+        "additionalProperties": true,
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "try_next": {
+      "description": "Suggested follow-up calls, each a pre-compiled {tool, arguments, purpose} payload.",
+      "items": {
+        "additionalProperties": false,
+        "description": "Pre-compiled next call: copy `arguments` straight into the next tools/call.",
+        "properties": {
+          "arguments": {
+            "additionalProperties": true,
+            "description": "Ready-to-use arguments, pre-populated from the current response.",
+            "type": "object"
+          },
+          "purpose": {
+            "description": "Why this call is the natural next step.",
+            "type": "string"
+          },
+          "tool": {
+            "description": "Tool to call next.",
+            "type": "string"
+          }
+        },
+        "required": [
+          "tool",
+          "arguments"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "ok",
+    "tracks",
+    "count"
+  ],
+  "type": "object"
+}
  2. Added

TDQS

A4.4/5.0
Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint=false, so safety is covered. The description adds genuine behavioral scope: this is the browse-all path returning every sync-ready track with rights, clearance status, and best-for use cases. It stops short of noting result-set size or pagination behavior for an unfiltered browse, which is the main residual gap.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the trigger condition ('CALL THIS when...'), then alternatives, then the chaining step — a good decision order. The quoted user utterances are slightly verbose but do real work for intent matching; the description is not padded elsewhere.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness5/5

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 not be re-explained, and annotations carry the safety profile. Purpose, exclusions, alternatives, and the next tool in the workflow are all present, leaving nothing an agent needs in order to call this correctly.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% and both mood/genre filters are documented in the schema, so the baseline is 3. The description adds no extra meaning about how these filters interact with the browse-all behavior (e.g., whether supplying them narrows the 'full inventory' result).

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource — browse the full licensable sync inventory — and immediately scopes it against targeted search. It explicitly distinguishes itself from sync_search and find_tracks_for_brief, so an agent can route without opening any schema.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines5/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives explicit when-to-use ('show me everything I can license'), when-not ('not a specific search'), two named alternatives with their own use cases, and a downstream chaining step (submit_sync_brief). Nothing is left to inference.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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