JSON catalogs

These commands write one JSON document to stdout and exit without starting an AI session.

• palabre agents --json exposes roles[], agents[], and defaults.askAgents[]. Each agent provides its name, type, role, availability, and a reason when needed.
• palabre presets --json exposes pairs, order, available, missingAgents[], and unavailableReasons[].
• palabre context scan src docs --json exposes the root, requested paths, items[], and warnings[].
• palabre history --json exposes the 10 most recent exports in history[]. An integration may request 1 to 100 entries with --limit <number>.
• palabre sessions --json exposes the 20 most recent checkpoints in sessions[], with a limit from 1 to 100. A valid entry contains valid, id, status, mode, topic, updatedAt, responses, nextPhase, and resumable. A corrupted entry contains valid: false, id, updatedAt, and a stable warning, without raw contents or an absolute path.
• palabre sessions delete <session-id> --yes --json confirms the targeted deletion with { "v": 1, "deleted": { "id": "..." } }.

Consumption rules

• check v;
• ignore unknown fields;
• accept missing optional fields;
• do not recalculate availability or scanning rules;
• display warnings without changing their meaning.