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fix(chat): fallback vers un nouveau lancement quand la session structurée reattach est morte (#147)

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reattachAgentChat pouvait échouer avec NOT_FOUND (session structurée fermée
ou jamais vivante) et laisser fuiter l'erreur brute jusqu'à l'utilisateur
("not found: structured session ... not found") au lieu de relancer une
session fraîche. Le fallback ne s'applique qu'au code NOT_FOUND ; toute
autre erreur de reattach continue de remonter telle quelle.

QA vert 2026-08-05 : npx vitest run CustomAgentChatView.test.tsx,
npx vitest run agents.test.tsx CustomAgentChatView.test.tsx, npm run typecheck.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Blomios
2026-08-05 12:11:38 +02:00
parent c0764d6a0c
commit b37542107a
2 changed files with 108 additions and 5 deletions
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17
frontend/src/features/agents/CustomAgentChatView.tsx
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@ -154,11 +154,18 @@ export function CustomAgentChatView({
setError(null);
try {
if (sessionId) {
const reattached = await agent.reattachAgentChat!(sessionId, receive);
if (cancelled) return;
setCurrentSession(reattached.sessionId);
setTurns(reattached.scrollback.reduce(foldChunk, [] as ChatTurn[]));
return;
try {
const reattached = await agent.reattachAgentChat!(sessionId, receive);
if (cancelled) return;
setCurrentSession(reattached.sessionId);
setTurns(reattached.scrollback.reduce(foldChunk, [] as ChatTurn[]));
return;
} catch (e) {
// The backend contract for `reattach_agent_chat` (NOT_FOUND) is that
// the session is gone (closed/never live) and the caller falls back
// to a fresh launch — any other error still surfaces to the user.
if ((e as GatewayError)?.code !== "NOT_FOUND") throw e;
}
}
const launched = await agent.launchAgentChat!(projectId, agentId, {
cwd,