Signal
A signal is the basic unit of research output: a title, summary, category, tags, metric scores, sources, image, and grounding state. Signals are the thing you discover, edit, score, and synthesize.
Anatomy
Title, summary, category (one), tags (many), metric scores (one per workspace metric), sources (many URLs with verdicts), an optional image, a grounding state, and a per-signal timeline of every edit.
What you can edit by hand
Title, summary, category, tags, metric scores, sources, and images are all editable at any time. You can also soft-delete a signal and restore it later — deletions are reversible.
What is read-only
The grounding fields — overall state, confidence, rationale, per-source verdicts — are owned by the source-and-verify task. To revise them, re-run that task (optionally with force re-verify).
Timeline
Every signal carries a chronological log of who or what changed what, when. That trail is how you trace a finding back to its origin and audit how it reached its current shape.