Agent tools / Text and context preparation
Compare text Review an agent rewrite before accepting it.
Status: implemented. Runtime: browser-or-local. Version: 1.0.0.
Specify Unicode, locale and truncation behavior; preserve source offsets where possible.
Supported profile This tool accepts the schema below. Its result includes data and versioned runtime metadata. Read warnings in returned data for algorithm coverage and assumptions.
Input schema {
"type": "object",
"properties": {
"before": {
"type": "string",
"maxLength": 10000
},
"after": {
"type": "string",
"maxLength": 10000
}
},
"required": [
"before",
"after"
],
"additionalProperties": false
} Output schema {
"$schema": "http://json-schema.org/draft-07/schema#",
"type": "object",
"properties": {
"data": {
"type": "object",
"properties": {
"changes": {
"type": "array",
"items": {
"type": "object",
"properties": {
"count": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"value": {
"type": "string",
"maxLength": 200000
},
"added": {
"type": "boolean"
},
"removed": {
"type": "boolean"
}
},
"required": [
"count",
"value"
],
"additionalProperties": false,
"maxProperties": 2000
},
"maxItems": 2000
}
},
"required": [
"changes"
],
"additionalProperties": false,
"maxProperties": 2000
},
"metadata": {
"type": "object",
"properties": {
"tool": {
"const": "text.diff"
},
"version": {
"const": "1.0.0"
},
"runtime": {
"type": "string",
"enum": [
"local",
"browser",
"server"
]
},
"elapsedMs": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"retained": {
"const": false
}
},
"required": [
"tool",
"version",
"runtime",
"retained"
],
"additionalProperties": false,
"maxProperties": 2000
}
},
"required": [
"data",
"metadata"
],
"additionalProperties": false,
"$defs": {
"json": {
"anyOf": [
{
"type": "null"
},
{
"type": "boolean"
},
{
"type": "number"
},
{
"type": "string",
"maxLength": 200000
},
{
"type": "array",
"items": {
"$ref": "#/$defs/json"
},
"maxItems": 2000
},
{
"type": "object",
"maxProperties": 2000,
"additionalProperties": {
"$ref": "#/$defs/json"
}
}
]
}
}
} Example arguments {
"before": "one two",
"after": "one three"
} Local MCP tool name: text__diff. Browser and local execution work without a key.
Hosted REST and MCP execution are disabled in this release. Run the example in the browser console below, or use the local MCP server from this repository.
Privacy and limits 256 KiB arguments, 512 KiB output, 20 nesting levels and 2,000 array entries. No input/output logging in this layer. Browser/local utilities do not submit inputs remotely. Optional network operations disclose destination requests. Caller-supplied policies and guardrail findings never grant execution privileges.
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a fetch example api.curl_fetchRuns locally Generate a bounded schema example api.schema_exampleRuns locally Validate a request against a contract api.request_validateRuns locally Validate an API response contract api.response_validateRuns locally Lint an MCP tool manifest mcp.manifest_lintRuns locally Inspect JWT structure without trusting it api.jwt_inspectRuns locally Generate seeded synthetic records test.synthetic_recordsRuns locally Validate chat JSONL dataset rows test.jsonl_datasetRuns locally Evaluate regex cases with a deadline test.regex_casesRuns locally Generate schema boundary cases test.schema_edgesRuns locally Check numeric-array properties test.property_casesRuns locally Compare a result to a golden fixture test.golden_compareRuns locally Describe a synthetic fault fixture test.fault_fixtureRuns locally Find exact and normalized dataset duplicates test.dataset_duplicatesRuns locally Check train and test overlap test.split_leakageRuns locally Compare supplied artifact measurements test.artifact_invariantsRuns locally Score exact and normalized answer matches eval.exact_matchRuns locally Score tool selection eval.tool_choiceRuns locally Score tool arguments eval.argumentsRuns locally Score workflow completion constraints eval.trajectoryRuns locally Evaluate refusal and over-refusal eval.refusalRuns locally Score approved injection tests eval.injection_resilienceRuns locally Compare two agent configurations eval.paired_runsRuns locally Build a reproducible evaluation report eval.reportRuns locally Split text into bounded chunks rag.chunkRuns locally Compare supplied embedding vectors rag.semantic_compareRuns locally Extract frequency-based keyphrases rag.keyphrasesRuns locally Search supplied source records rag.retrieveRuns locally Rerank candidates by lexical overlap rag.rerankRuns locally Check that cited passages exist rag.citation_checkRuns locally Measure source coverage for listed claims rag.coverageRuns locally Check source age against a task policy rag.freshnessRuns locally Deduplicate retrieved sources rag.source_dedupeRuns locally Evaluate robots rules for a named crawler seo.robotsRuns locally Inspect sitemap URLs seo.sitemapRuns locally Validate page metadata seo.metaRuns locally Audit reciprocal hreflang seo.hreflangRuns locally Inspect JSON-LD blocks seo.structured_dataRuns locally Lint llms.txt and linked Markdown seo.llms_lintRuns locally Build campaign tracking URLs seo.utmRuns locally Generate canonical sitemap content seo.sitemap_buildRuns locally Check color contrast a11y.contrastRuns locally Inspect HTML heading order a11y.headingsRuns locally Check form label associations a11y.labelsRuns locally Generate a semantically labelled table a11y.tableRuns locally Suggest high-contrast palette fallbacks a11y.paletteRuns locally Run a bounded static accessibility audit a11y.static_auditRuns locally Audit a recorded keyboard flow a11y.keyboard_traceRuns locally Validate an artifact link bundle publish.link_integrityRuns locally Prepare a text bundle manifest publish.bundleRuns locally Test a semantic version range dependency.semverRuns locally Inspect a Content Security Policy security.cspRuns locally Compare dependency lockfiles dependency.lock_diffRuns locally Generate an inventory SBOM dependency.sbomRuns locally Inspect declared license allowlists dependency.licensesRuns locally Verify subresource integrity security.sri_verifyRuns locally Normalize static-analysis findings security.sarifRuns locally Scan a supplied code diff for configured risks security.diff_scanRuns locally Convert subtitle formats media.subtitle_convertRuns locally Validate subtitle timestamps media.subtitle_validateRuns locally Shift subtitle timestamps media.subtitle_shiftRuns locally Validate a bounded workflow graph workflow.validateRuns locally Preview a typed workflow workflow.planRuns locally Partition items into bounded batches workflow.batchRuns locally Plan remaining workflow steps workflow.resumeRuns locally Prepare a reviewable webhook delivery integration.webhook_prepareRuns locally Build a structured email draft integration.email_draftRuns locally Build a calendar-event draft integration.calendar_draftRuns locally Compare supplied connector scope lists integration.connector_scopesRuns locally Review an agent rewrite before accepting it.
Specify Unicode, locale and truncation behavior; preserve source offsets where possible.
Contract and limitations
Arguments (JSON) Run locally Cancel Reset example
Result Run a tool to see its structured result. Let a browser agent use this console Enable WebMCP when your browser supports it. Inputs run locally and results remain visible here.
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