touch-browser

by nangman-infra

Overview Schema Source Related Servers Discussions Admin

Rust

Local

Synthesize Session

tb_session_synthesize

Generate a citation-ready synthesis report by aggregating tabs from a browser session.

Instructions

Aggregate opened tabs inside a daemon session into a citation-ready synthesis report. Requires sessionId and at least one opened tab.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`sessionId`	Yes	The browser session to use for this operation.
`noteLimit`	No	The maximum number of notes to include in the synthesis report.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`sessionId`	Yes
`activeTabId`	Yes
`tabCount`	Yes
`format`	Yes
`markdown`	No
`report`	Yes
`tabReports`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed3 schema fields changedv0.7.0Jun 12, 2026

addedInput schema / properties / noteLimit / description

Added value: +"The maximum number of notes to include in the synthesis report."

addedInput schema / properties / sessionId / description

Added value: +"The browser session to use for this operation."

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "additionalProperties": false,
+  "properties": {
+    "activeTabId": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "format": {
+      "type": "string"
+    },
+    "markdown": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "report": {
+      "additionalProperties": false,
+      "properties": {
+        "contradictedClaims": {
+          "items": {
+            "additionalProperties": true,
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "evidenceReportCount": {
+          "minimum": 0,
+          "type": "integer"
+        },
+        "evidenceSupportedClaims": {
+          "items": {
+            "additionalProperties": true,
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "generatedAt": {
+          "type": "string"
+        },
+        "insufficientEvidenceClaims": {
+          "items": {
+            "additionalProperties": true,
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "needsMoreBrowsingClaims": {
+          "items": {
+            "additionalProperties": true,
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "sessionId": {
+          "type": "string"
+        },
+        "snapshotCount": {
+          "minimum": 0,
+          "type": "integer"
+        },
+        "synthesizedNotes": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "version": {
+          "type": "string"
+        },
+        "visitedUrls": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "workingSetRefs": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        }
+      },
+      "required": [
+        "version",
+        "sessionId",
+        "generatedAt",
+        "snapshotCount",
+        "evidenceReportCount",
+        "visitedUrls",
+        "workingSetRefs",
+        "synthesizedNotes",
+        "evidenceSupportedClaims",
+        "insufficientEvidenceClaims"
+      ],
+      "type": "object"
+    },
+    "sessionId": {
+      "type": "string"
+    },
+    "tabCount": {
+      "minimum": 0,
+      "type": "integer"
+    },
+    "tabReports": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "report": {
+            "additionalProperties": false,
+            "properties": {
+              "contradictedClaims": {
+                "items": {
+                  "additionalProperties": true,
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "evidenceReportCount": {
+                "minimum": 0,
+                "type": "integer"
+              },
+              "evidenceSupportedClaims": {
+                "items": {
+                  "additionalProperties": true,
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "generatedAt": {
+                "type": "string"
+              },
+              "insufficientEvidenceClaims": {
+                "items": {
+                  "additionalProperties": true,
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "needsMoreBrowsingClaims": {
+                "items": {
+                  "additionalProperties": true,
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "sessionId": {
+                "type": "string"
+              },
+              "snapshotCount": {
+                "minimum": 0,
+                "type": "integer"
+              },
+              "synthesizedNotes": {
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              },
+              "version": {
+                "type": "string"
+              },
+              "visitedUrls": {
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              },
+              "workingSetRefs": {
+                "items": {
+                  "type": "string"
+                },
+                "type": "array"
+              }
+            },
+            "required": [
+              "version",
+              "sessionId",
+              "generatedAt",
+              "snapshotCount",
+              "evidenceReportCount",
+              "visitedUrls",
+              "workingSetRefs",
+              "synthesizedNotes",
+              "evidenceSupportedClaims",
+              "insufficientEvidenceClaims"
+            ],
+            "type": "object"
+          },
+          "tabId": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "tabId",
+          "report"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "sessionId",
+    "activeTabId",
+    "tabCount",
+    "format",
+    "report",
+    "tabReports"
+  ],
+  "type": "object"
+}

First observedv0.1.11Apr 15, 2026

TDQS

A3.8/5.0

Behavior2/5

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

No annotations are provided, so the description must fully convey behavioral traits. It states the tool aggregates tabs into a report, but does not disclose whether it modifies state, if it is read-only, or any side effects. The prerequisite about opened tabs is helpful but insufficient for full transparency.

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

Conciseness5/5

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

The description is a single concise sentence, front-loading the purpose and essential prerequisite. Every word earns its place with no redundancy.

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

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the presence of an output schema, the description does not need to detail return values. It covers the core operation and prerequisites. It could be improved by mentioning error conditions or output format overview, but is adequate for the tool's simplicity.

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 coverage is 100%, so baseline is 3. The description adds the prerequisite hint about 'at least one opened tab' but does not add meaning to the parameters beyond what the schema already provides. The noteLimit parameter remains as described in the schema.

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?

The description clearly states the verb 'aggregate', the resource 'opened tabs', and the output 'citation-ready synthesis report'. It distinguishes this tool from all siblings, none of which perform synthesis.

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

Usage Guidelines4/5

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

The description specifies prerequisites (sessionId and at least one opened tab), which clarifies when the tool can be used. However, it does not explicitly state when not to use it or suggest alternatives, but no alternatives exist among siblings.

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