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fix(session): sanitize part IDs after plugin hooks #18788

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fix(session): sanitize part IDs after plugin hooks #18788

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bc69386
fix(session): sanitize part IDs after plugin hooks to prevent schema …
CybLow Mar 23, 2026
c434eb7
Merge branch 'dev' into fix/sanitize-plugin-part-ids
CybLow Mar 24, 2026
bd948b1
Merge branch 'dev' into fix/sanitize-plugin-part-ids
CybLow Mar 24, 2026
cc35814
Merge branch 'dev' into fix/sanitize-plugin-part-ids
CybLow Mar 24, 2026
382465c
Merge branch 'anomalyco:dev' into fix/sanitize-plugin-part-ids
CybLow Mar 27, 2026
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8 changes: 8 additions & 0 deletions packages/opencode/src/session/prompt.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1350,6 +1350,14 @@ export namespace SessionPrompt {
},
)

// Ensure all part IDs are valid after plugin hooks may have mutated the parts array.
// Plugins can push parts with non-compliant IDs (e.g., missing "prt" prefix).
for (const part of parts) {
if (!part.id || typeof part.id !== "string" || !part.id.startsWith("prt")) {
;(part as any).id = PartID.ascending()
}
}

const parsedInfo = MessageV2.Info.safeParse(info)
if (!parsedInfo.success) {
log.error("invalid user message before save", {
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