---
id: ESRC-WP-0004
type: workplan
title: "Local citation recovery and external source discovery hooks"
domain: infotech
repo: evidence-source
status: finished
owner: codex
topic_slug: citation_evidence_mvp
created: "2026-07-08"
updated: "2026-07-09"
spec_refs:
  - INTENT.md
  - README.md
  - docs/ADR-0004-citation-recovery-boundary.md
state_hub_workstream_id: "2ce8b799-d67c-4dbf-aac5-0ff1f0363d62"
---

# ESRC-WP-0004 — Citation recovery and source discovery hooks

`evidence-source`'s original intent includes recovering citations when a stored
selector goes stale and discovering the external source a document was drawn
from. This is the largest deferred strand and depends on the anchoring layer's
selector model.

## Decisions (ADR-0004)

- `evidence-source` owns re-ingest/re-fingerprint, local quote search, and a
  pluggable discovery hook registry (no network in core).
- Stale selector detection and resolution order stay in `evidence-anchor`.

## Sketch

```task
id: ESRC-WP-0004-T01
status: done
priority: low
state_hub_task_id: "e7ff29b9-f04f-44f5-a23a-b028fc20a80b"
```
Design the recovery boundary with the anchor layer: define what
`evidence-source` owns vs. what stays in anchoring.

```task
id: ESRC-WP-0004-T02
status: done
priority: low
state_hub_task_id: "88a512d1-70e0-4bfa-b6b0-c1e4e31abb97"
```
Prototype re-ingest/re-fingerprint recovery primitives and a discovery hook
interface (no network coupling baked into the core).