tru8_check
Submit a claim or article URL to receive source-traced evidence research with element-level verification and tiered analysis from lookup to full investigation.
Instructions
Evidence research for a factual claim or article URL.
Submit a claim as text or paste an article URL. URLs are auto-detected and trigger article mode: the pipeline extracts claims from the page and auto-selects up to 5 for evidence research.
Tiers (in fallback order):
lookup (~£0.02, instant) — cached prior analysis
consensus (~£0.03, instant) — cross-user aggregate landscape (k≥3 checks)
quick (~£0.07, ~15s) — web search + heuristic classification
full (~£0.15, ~60-90s) — 30+ sources, LLM classification, coverage recovery
Charges based on tier actually executed, not tier requested. Set max_tier to control maximum spend per call.
Output structure:
claims[].claimMap.elements[] — verifiable sub-claims with state (supported/disputed/unresolved)
claims[].claimMap.elements[].evidenceRefs[] — evidence mapped to elements with relationship (supports/challenges/context) and reasoning
claims[].evidence[] — sources classified by tier (primary/reporting/ commentary) and type (data/official/news/analysis/opinion/academic)
claims[].claimMap.orientation — mechanical summary from element states
_meta — execution metadata: executedTier, chargedPence, limitations
Args: claim: A factual claim ("The Earth's average temperature rose 1.1°C since 1880") or an article URL (https://example.com/article). URLs are auto-detected and the pipeline extracts claims from the page content. max_tier: Maximum tier to attempt — "lookup", "consensus", "quick" (default), or "full". max_age_hours: Skip cache hits older than this many hours. If set, lookup hits that are stale will be discarded and the pipeline re-runs at the next tier up to max_tier. compact: If True, strip full evidence arrays from response (smaller payload).
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| claim | Yes | ||
| max_tier | No | quick | |
| max_age_hours | No | ||
| compact | No |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |