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3 Commits
Author SHA1 Message Date
mathiasandClaude Opus 5.5 c7a6429bae fix(graph,wiki): read the brain through brainfs (#157, slice 4)
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graphsync.IndexDoc/BackfillFromBrainDir and wiki.LoadInventory/
RebuildIndex read notes by path (os.ReadFile, os.Open, os.ReadDir +
open). A symlinked note put the target's title, aliases and wikilinks
into the knowledge graph, the wiki inventory (and the LLM prompts built
from it) and wiki/index.md; a FIFO hung each read.

- graphsync: IndexDoc and the backfill read through brainfs; the
  backfill walks with WalkRegular, skips a missing root and aborts on
  any other walk error, including a symlinked root.
- wiki: LoadInventory lists type dirs with the new
  brainfs.ReadDirRegular (every component a real dir, regular files
  only) and reads frontmatter through the root; a symlinked type dir is
  an error. RebuildIndex reads first sentences through the root.
- brainfstest's outside file now carries the sentinel in frontmatter
  title and aliases, a heading and a wikilink, so extractors that ignore
  the body are tested too.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-04 22:17:44 +02:00
mathiasandClaude Opus 5 125c99bb46 fix(text): truncate on rune boundaries, not byte offsets (#93)
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Four call sites did `s[:limit] + "…"`. Both halves are byte operations:
len() counts bytes and a slice cuts bytes. On Swedish text — å ä ö are
two bytes, an em dash three — the cut lands mid-character and leaves an
orphaned lead byte, producing invalid UTF-8.

It failed loudly in exactly one place: wiki/index.md is written raw to
disk, where every strict decoder then rejects the whole file. The other
three (brain_context excerpts x2, brain_query excerpts) feed MCP
responses, where encoding/json silently substitutes U+FFFD — so those had
been quietly eating the last character of truncated excerpts, with no
error anywhere and nothing to notice.

textutil.Truncate counts runes and appends the marker only when content
was actually dropped; an ellipsis on complete text is a lie about the
content. The test is a property, not an example: it walks the limit
across every offset of a multi-byte string and asserts utf8.Valid at each
one, so a future off-by-one cannot pass by picking a lucky boundary.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BeAp5LTscnz2W7Ubt4eJ6m
2026-08-18 07:13:15 +02:00
mathias d405346f07 feat(ingestion): add wiki index rebuilder and audit log 2026-04-22 22:36:55 +02:00