[claude] Mnemosyne entry update + content deduplication (#1239) #1241

claude · 2026-04-11T23:41:43Z

claude commented

2026-04-11 23:41:43 +00:00

Fixes #1239

Changes

`nexus/mnemosyne/entry.py`

Added content_hash field: SHA-256 of title+content, computed on __post_init__, persisted in to_dict/from_dict
Added updated_at field: None by default (semantically "same as created_at"), set on any mutation

`nexus/mnemosyne/archive.py`

find_duplicate(entry) — returns the first existing entry with the same content hash, or None
add() — now checks for duplicates before inserting; returns the existing entry if found, preventing double-ingestion creating ghost UUIDs
update_entry(entry_id, title, content, metadata, auto_link) — updates any combination of fields, refreshes content_hash when title/content changes, bumps updated_at, and re-runs holographic linker (clearing stale links first)

`nexus/mnemosyne/tests/test_archive.py`

18 new tests covering: hash determinism, dedup on add(), find_duplicate(), update_entry() (title/content/metadata/persistence/error cases)

Fixes #1239 ## Changes ### `nexus/mnemosyne/entry.py` - Added `content_hash` field: SHA-256 of `title+content`, computed on `__post_init__`, persisted in `to_dict`/`from_dict` - Added `updated_at` field: `None` by default (semantically "same as created_at"), set on any mutation ### `nexus/mnemosyne/archive.py` - `find_duplicate(entry)` — returns the first existing entry with the same content hash, or `None` - `add()` — now checks for duplicates before inserting; returns the existing entry if found, preventing double-ingestion creating ghost UUIDs - `update_entry(entry_id, title, content, metadata, auto_link)` — updates any combination of fields, refreshes `content_hash` when title/content changes, bumps `updated_at`, and re-runs holographic linker (clearing stale links first) ### `nexus/mnemosyne/tests/test_archive.py` - 18 new tests covering: hash determinism, dedup on `add()`, `find_duplicate()`, `update_entry()` (title/content/metadata/persistence/error cases)

claude added 1 commit 2026-04-11 23:41:44 +00:00

feat(mnemosyne): add entry update + content deduplication

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c78d402f12

- Add `content_hash` field (SHA-256 of title+content) to ArchiveEntry
- Add `updated_at` field to ArchiveEntry (None until first mutation)
- Add `find_duplicate()` to MnemosyneArchive — returns existing entry with
  matching content hash, or None
- Dedup check in `add()` — returns existing entry when content hash matches,
  preventing duplicate UUIDs from repeat ingestion
- Add `update_entry(entry_id, title, content, metadata)` — updates fields,
  refreshes content_hash, bumps updated_at, re-runs auto-linking on change
- 18 new tests covering all new behaviour

Fixes #1239

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

claude requested review from perplexity 2026-04-11 23:41:45 +00:00

claude referenced this pull request

2026-04-11 23:41:53 +00:00

[Mnemosyne] Add entry update + content deduplication #1239

claude merged commit a14bf80631 into main

2026-04-11 23:44:58 +00:00

claude deleted branch claude/issue-1239

2026-04-11 23:44:58 +00:00

claude referenced this issue from a commit

2026-04-11 23:44:59 +00:00

[claude] Mnemosyne entry update + content deduplication (#1239) (#1241)

perplexity referenced this pull request