Crawlora MCP

gdelt_tv_showchart

Read-only

Return the top shows by result percentage for a query — which shows covered a topic the most, as a share of matching results.

Input Schema

TableJSON Schema

Name	Required	Description
`to`	No	End of an absolute time window. Same formats as from.
`from`	No	Start of an absolute time window. Accepts YYYY-MM-DD, RFC3339, or GDELT's raw YYYYMMDDHHMMSS. Cannot be combined with timespan.
`show`	No	Limit to an exact show name.
`visual`	No	Search visual object/activity labels from computer vision (GDELT's visual: operator), e.g. VOLCANO, POLICE. Repeatable -- multiple values are OR'd together.
`caption`	No	Search human-provided closed captioning (GDELT's cap: operator). Repeatable -- multiple values are OR'd together.
`concept`	No	Search Google Knowledge Graph concepts extracted from captioning, by MID code (GDELT's capnlp: operator), e.g. /M/0d063v. Repeatable -- multiple values are OR'd together.
`stations`	No	Required, repeatable. One or more stations, OR'd together. Allowed values: CNN, MSNBC, FOXNEWS, BBCNEWS, KGO (ABC San Francisco), KPIX (CBS San Francisco), KNTV (NBC San Francisco). See gdelt-tv-stationdetails for GDELT's own current list.
`timespan`	No	Relative time window ending now, e.g. 1h, 7d, 3m, 1y. Cannot be combined with from/to. Omit both for GDELT's full archive (auto-resolution, back to July 6, 2010).
`transcript`	No	Search machine-generated speech-to-text transcripts (GDELT's asr: operator). Repeatable -- multiple values are OR'd together. Short phrases only (GDELT caps each at 5 words).
`onscreen_text`	No	Search OCR'd onscreen text/chyrons (GDELT's ocr: operator). Repeatable -- multiple values are OR'd together. Short phrases only (GDELT caps each at 5 words).
`exclude_visual`	No	Exclude clips whose visual labels match this value (GDELT's -visual: operator). Repeatable; every value must be absent (AND'd exclusions).
`exclude_caption`	No	Exclude clips whose closed captioning matches this value (GDELT's -cap: operator). Repeatable; every value must be absent (AND'd exclusions).
`exclude_concept`	No	Exclude clips whose extracted concepts match this MID code (GDELT's -capnlp: operator). Repeatable; every value must be absent (AND'd exclusions).
`exclude_transcript`	No	Exclude clips whose speech-to-text transcript matches this value (GDELT's -asr: operator). Repeatable; every value must be absent (AND'd exclusions).
`exclude_onscreen_text`	No	Exclude clips whose OCR'd onscreen text matches this value (GDELT's -ocr: operator). Repeatable; every value must be absent (AND'd exclusions).

Output Schema

TableJSON Schema

Name	Required	Description	Default
`data`	Yes	The tool result payload (shape varies per tool; see each tool's docs resource).

Schema Changelog

Changes observed during successful MCP inspections.

First observedOct 5, 2026

TDQS

B3.4/5.0

Behavior3/5

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds useful interpretation of what 'result percentage' means, but says nothing about the required stations input, time-window constraints, or result limits. With annotations carrying the safety load, a 3 is appropriate.

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?

A single sentence with the verb and resource front-loaded, followed immediately by the clarifying definition of the ranking metric. No filler.

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?

For a read-only chart tool with a full output schema and 100%-covered parameters, the description covers purpose adequately; return values and filters are handled elsewhere. The gap is the absence of any routing versus its station-chart sibling, which matters given how many gdelt_tv_* tools exist.

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% across all 15 parameters, so the schema already documents each filter, its GDELT operator, and its repeatability semantics. The description mentions only 'query' generically and adds no syntax or format detail beyond the schema, so the baseline of 3 holds.

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

Purpose4/5

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

States a specific verb and resource ('Return the top shows by result percentage for a query') and explains the metric as the share of matching results. An agent can distinguish it from a station-level chart, but the description never names or contrasts the close sibling gdelt_tv_stationchart, leaving that distinction to inference.

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

Usage Guidelines2/5

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

There is no when-to-use guidance, no conditions that select this tool over gdelt_tv_stationchart, gdelt_tv_timeline, or gdelt_tv_search, and no mention of prerequisites such as the required stations parameter. The description is purely descriptive of output.

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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