F1 [blocking]: a suggestion whose anchor matched via normalization could never
be applied (spurious 409). The comment mark lands on the doc's ACTUAL text
(Docmost auto-converts to typographic quotes/dashes/nbsp), but the stored
selection — used as expectedText at apply — was the raw ASCII agent input
(+substring(0,250)). So replaceYjsMarkedText's strict joined!==expectedText
always failed and threw "text changed" though nobody edited. Fix: new pure
getAnchoredText(doc, selection) reconstructs the exact raw doc substring the mark
covers (slicing identical to spliceCommentMark); on the suggestion path
client.createComment stores THAT as selection, so expectedText equals the marked
text and apply returns applied:true. Live anchoring still uses the raw agent
selection (normalization still finds the anchor). Truncation raised 250->2000
(+ DTO @MaxLength(2000)) so the anchored substring is never cut below the mark
span. Ordinary comments unchanged. AI-chat shares client.createComment, so
covered. Regression tests: getAnchoredText raw-vs-ASCII; create payload selection
is the typographic substring; apply with typographic expectedText -> applied.
F2 [blocking]: added comment.controller.spec.ts pinning that validateCanEdit runs
before applySuggestion (Forbidden -> applySuggestion never called; happy path ->
called; missing comment -> 404 without authorizing).
MCP 448 pass; server comment+yjs 54 pass. MCP build/ rebuilt.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The primitive behind "Apply comment suggestion": walk the XmlFragment, collect
the delta segments carrying the `comment` mark for a commentId, and replace them
with new text ONLY if the run is intact (single Y.XmlText, contiguous, and the
joined text still equals the expected anchor). Otherwise return a verdict
{ applied:false, currentText } — null when the anchor is gone, else the current
text — so the caller can report "someone changed it". On apply it deletes the
run and re-inserts the new text re-attaching the same comment mark (thread stays
anchored). Mutates in place for the caller's connection.transact(); opens no
transaction of its own.
Non-string inserts (embeds) advance the offset by their 1-unit index length so a
marked segment after an embed gets the right position and an embed inside a run
is correctly rejected as a changed anchor.
Tests (yjs.util.spec.ts): happy path (mark preserved, surrounding text and no
mark-bleed), resolved-mark match, changed text, deleted anchor, paragraph split,
interleaved unmarked text, and embed before/inside the run. 17 passed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
guardedFetch blocks loopback/private/link-local/metadata IPs and never calls
fetch; decryptHeaders fails open (returns undefined, warns once, no blob leak).
yjs.util setYjsMark/removeYjsMarkByAttribute/updateYjsMarkAttribute on real
Y.Docs. SHARED_TOOL_SPECS<->in-app parity (name/desc/input-schema; a dropped or
renamed wiring fails). Replace the tautological storage.service spec with
driver-delegation checks across every public method.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
claude code agent 227