Tcx Artifact

Persist An Artifact

Use the authoritative MCP schema for create_research_artifact, append_research_artifact_version, or issue_forecast. Never approximate a tool name or write canonical records directly.

Quality Floor

• Answer the assigned question and distinguish facts, analysis, and assumptions in natural prose where material.
• Preserve source/as-of posture, conflicts, uncertainty, confidence and its basis, gaps, blocked actions, and handoff state.
• Use only real service IDs. The service derives hashes, versions, role, identity where applicable, paths, receipt provenance, and recorded time.
• Use accepted only when ready for Head Manager review. Acceptance is completeness, not action authority.

V2 Write Contract

1. Record source snapshots before citing them and use only returned IDs.
2. Put type, title, universe, optional symbol, Markdown, and one non-empty summary at top level.
3. Put handoff, evidence_readiness, action_readiness, confidence, confidence_basis, missing evidence, and blocked actions in status.
4. Put the run, timezone-qualified cutoff, and every consumed Artifact, Snapshot, Dataset, and Calculation ID in lineage. The receipt owns hashes and exact input versions.
5. Use only factual, screen, decision-grade, or insufficient evidence readiness and research-only, portfolio-review, draft-eligible, or blocked action readiness. Portfolio review and draft eligibility require decision-grade evidence.
6. Include only applicable requirements: decision_quality, forecast, investor_context, or anti_overfit. Inherited requirements cannot be removed. Omit empty optional blocks.
7. Put detailed scenarios, contrary evidence, trust explanation, and domain analysis in Markdown. Actual forecast probability, base rate, horizon, and resolution belong only in the Forecast ledger. Improvements belong only in Judgment Review or Postmortem.
8. On success, stop and return ARTIFACT <artifact-id> <path> <handoff> using values from the response. Never reconstruct them.

For append, keep the target artifact_id separate from consumed input IDs. A Head Manager synthesis never supplies its own ID or path; the service derives one identity per run and append reuses it.

When decision quality is required, bind the accepted independent reviewer in decision_quality.review_artifact_ids; keep update triggers and invalidation conditions compact. Detailed thesis lifecycle belongs in the reviewer artifact or Validation Card.

Stop Unchanged Tool Loops

Treat stored, updated, existing, reused, and prepared as completion. Permit the initial write and one evidence-backed corrected retry. After another deterministic failure, stop as waiting with the bounded error and owner.

Forecasts

Issue a scoreable forecast only after its supporting artifact is accepted and bind the required independent base-rate snapshot. If the ledger contract cannot be met, store forecast: {posture: blocked, block_reason: ...} rather than an invented probability.