islandflow/docs/implementation

Implementation Phase Plans

This directory is the active planning layer for the synthetic market-data and smart-money/smart-flow architecture work.

The architecture reviews in docs/plans/ are background guidance. Future implementation work should use the current phase document and matching Beads issue as the active scope. If a phase document and an older architecture review disagree, pause and update the phase document or Beads issue before writing code.

Source Plans

• docs/plans/synthetic-market-data-architecture-review.md
• docs/plans/smart-flow-architecture-review.md

Planning Rules

• Prefer small, reviewable PRs.
• Do not implement an entire architecture plan at once.
• Use Beads issues for execution tracking and dependency management.
• Keep durable architecture and phase detail in these docs, not in long Beads descriptions.
• Synthetic data must emit canonical market event types, not synthetic-only pipeline event types.
• Synthetic labels must remain separate from emitted market events.
• Smart-flow logic must distinguish facts, evidence, hypotheses, confidence, and abstention.
• Historical calibration is future work, not an MVP dependency.
• Early synthetic tests must not require Docker, ClickHouse, NATS, or Redis.
• Synthetic foundations should come before demos, UI controls, or live service work.

Beads Map

Stream	Epic	Roadmap
Synthetic market data	islandflow-259 - Plan synthetic market-data implementation phases	docs/implementation/synthetic-market-data/00-roadmap.md
Smart money / smart flow	islandflow-zxh - Plan smart-money to smart-flow implementation phases	docs/implementation/smart-money/00-roadmap.md

Dependency Order

This is the intended MVP ordering. Future calibration phases sit after the MVP chain and should not block it.

Order	Phase	Beads issue	Blocks next because
1	Synthetic deterministic spine	islandflow-259.1	The smart-flow vocabulary needs stable raw event/provenance assumptions.
2	Smart-flow contracts and vocabulary	islandflow-zxh.1	Synthetic manifests should target the eventual evidence/hypothesis language.
3	Synthetic manifests, fixtures, and CLI	islandflow-259.2	Evidence clustering needs deterministic fixtures before broad behavior changes.
4	Smart-flow evidence clustering and features	islandflow-zxh.2	Scenario labels need the evidence vocabulary they are expected to exercise.
5	Synthetic scenarios, labels, and expected outputs	islandflow-259.3	Hypothesis scoring needs labeled positive, negative, and abstention cases.
6	Smart-flow hypothesis scoring and abstention	islandflow-zxh.3	Synthetic replay integration should validate the derived hypothesis pipeline.
7	Synthetic replay integration	islandflow-259.4	Smart-flow golden tests need replayable synthetic runs.
8	Smart-flow replay evaluation and golden tests	islandflow-zxh.4	Demos should wait until replay proves the semantics.
9	Synthetic demo and load profiles	islandflow-259.5	API/UI explainability should show stable, named, deterministic runs.
10	Smart-flow API/UI explainability	islandflow-zxh.5	This is the final MVP presentation layer after the evidence pipeline is validated.

Future Work

Future phase	Beads issue	Notes
Synthetic historical calibration	islandflow-259.6	Depends on synthetic phase 05, but is not required for MVP.
Smart-flow calibration	islandflow-zxh.6	Depends on smart-flow phase 05 and synthetic future calibration, but is not required for MVP.

Existing Related Issue

islandflow-9dz already tracks tuning synthetic smart-money scenario coverage. It is narrower than these phase plans and was already in progress before this split. Treat it as related context for docs/implementation/synthetic-market-data/03-scenarios-labels-expected-outputs.md, not as the phase-level tracker.