# Phase 165.5 Summary

Status: materially implemented in working tree

## Goal

Integrate DeepXiv-style progressive reading and Graphify-style concept-graph
construction into AITP's `L0 -> L1` path, then make that graph useful for both
`L1 -> L2` staging and operator-facing graph navigation.

## What Landed

### `165.5-01`

- post-registration DeepXiv-style enrichment path:
  - `source-layer/scripts/enrich_with_deepxiv.py`
- source-local concept-graph build path:
  - `source-layer/scripts/build_concept_graph.py`
  - `schemas/concept-graph.schema.json`
- integrated registration/discovery bridge:
  - `register_arxiv_source.py`
  - `discover_and_register.py`
- dedicated isolated acceptances for:
  - discovery
  - enrichment
  - concept-graph build
- repository-level MIT attribution and docs updates for the imported patterns

### `165.5-02`

- mode-aware progressive reading in `L1` distillation
- `concept_graph` promoted into the `L1` intake contract and runtime/read
  surfaces
- Graphify-inspired analysis tools now active for `L1 -> L2`:
  - `shared_foundation_bridge`
  - `shared_concept_bridge`
  - `shared_community_bridge`
  - `shared_hyperedge_pattern_bridge`
  - `graph_diff`
  - question-seed generation
- graph-derived and diff-derived signals now feed the literature fast path into
  bounded `L2` staging work

### `165.5-03`

- repo-local Obsidian-compatible concept-graph export under the `L1` vault
- community overview pages, unclustered layout, and multi-community navigation
- node-page source provenance excerpts and directional relation wording
- explicit external theoretical-physics-brain mirror bridge with receipt
- operator-facing CLI entrypoint for the external bridge

## Verification Sweep

- `python -m pytest research/knowledge-hub/tests/test_source_discovery_contracts.py -q`
- `python -m pytest research/knowledge-hub/tests/test_graph_analysis_tools.py -q`
- `python -m pytest research/knowledge-hub/tests/test_obsidian_graph_export.py -q`
- `python -m pytest research/knowledge-hub/tests/test_obsidian_graph_bridge_support.py -q`
- `python -m pytest research/knowledge-hub/tests/test_runtime_scripts.py -q -k "l0_source_discovery_acceptance_script_runs_on_isolated_work_root or l0_source_enrichment_acceptance_script_runs_on_isolated_work_root or l0_source_concept_graph_acceptance_script_runs_on_isolated_work_root or l1_concept_graph_acceptance_script_runs_on_isolated_work_root or l1_progressive_reading_acceptance_script_runs_on_isolated_work_root or l1_graph_analysis_staging_acceptance_script_runs_on_isolated_work_root or l1_graph_diff_runtime_acceptance_script_runs_on_isolated_work_root or l1_graph_diff_staging_acceptance_script_runs_on_isolated_work_root or l1_graph_community_bridge_acceptance_script_runs_on_isolated_work_root or l1_graph_hyperedge_pattern_acceptance_script_runs_on_isolated_work_root or l1_graph_obsidian_export_acceptance_script_runs_on_isolated_work_root or l1_graph_obsidian_multicommunity_acceptance_script_runs_on_isolated_work_root or l1_graph_obsidian_brain_bridge_acceptance_script_runs_on_isolated_work_root"`

## Outcome

Phase `165.5` is now materially complete against the current roadmap contract:

- `L0` no longer stops at metadata-only source registration
- enriched source artifacts and source-local concept graphs now exist on the
  standard registration path
- `L1` distillation is mode-aware and graph-aware
- graph analysis is now useful for `L1 -> L2` staging, not just runtime
  rendering
- the graph can be browsed through repo-local Obsidian-compatible notes and
  mirrored explicitly into the external theoretical-physics brain

## Residual Debt

- `165.5-01`: richer Graphify-adapted extraction, dedup, and caching than the
  current bounded offline contract
- `165.5-02`: route- or promotion-level policy for how strongly graph-analysis
  signals should affect downstream prioritization
- `165.5-03`: optional markdown sync receipt and optional selective external
  mirror mode

## Next Logical Step

From a GSD perspective, `165.5` is now at phase-closeout quality. The next
logical move is no longer another `165.5` implementation slice; it is phase /
milestone completion work or promotion of the next active roadmap phase outside
`165.5`.
