# Phase 165.5-02 Summary

Status: partially implemented in working tree

## Goal

Start the `165.5-02` slice by making the new source-local `concept_graph.json`
artifact visible inside `L1` distillation and all major runtime/read surfaces,
instead of leaving it stranded in `L0`.

## What Landed

- `source_distillation_support.py` now reads source-local `locator.concept_graph_path`
  and projects that data into `distilled_l1_source_intake.concept_graph`
- `l1_source_intake_support.py` now treats `concept_graph` as a normalized,
  schema-facing part of the `l1_source_intake` contract
- runtime/read surfaces now render the graph summary:
  - `runtime_read_path_support.py`
  - `kernel_markdown_renderers.py`
  - `l1_vault_support.py`
- schema contracts now allow `concept_graph` under `l1_source_intake`:
  - `schemas/topic-synopsis.schema.json`
  - `runtime/schemas/progressive-disclosure-runtime-bundle.schema.json`
- isolated runtime acceptance now exists for the new surface:
  - `runtime/scripts/run_l1_concept_graph_acceptance.py`

## Verification

- `python -m pytest research/knowledge-hub/tests/test_topic_start_regressions.py -q -k "concept_graph"`
- `python -m pytest research/knowledge-hub/tests/test_aitp_service.py -q -k "projects_l1_concept_graph_into_contract_and_notes"`
- `python -m pytest research/knowledge-hub/tests/test_schema_contracts.py -q`
- `python -m pytest research/knowledge-hub/tests/test_l1_concept_graph_contracts.py -q`
- `python -m pytest research/knowledge-hub/tests/test_runtime_scripts.py -q -k "l1_concept_graph_acceptance_script_runs_on_isolated_work_root"`
- `python research/knowledge-hub/runtime/scripts/run_l1_concept_graph_acceptance.py --json`

## Outcome

The graph-based `L1` intake extension is now live as the first closed piece of
`165.5-02`.

- source-local concept graphs are no longer trapped in `L0`
- `status --json`, `research_question.contract.md`, `runtime_protocol.generated.md`,
  and the `L1` vault wiki source-intake page can all see the graph summary
- the remaining open work inside `165.5-02` is still substantial:
  - progressive reading / section-aware source loading by mode
  - graph-based analysis tools for `L1 -> L2` connection
  - richer graph ingestion than the current bounded summary projection
