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fix(ai): filter empty error assistant messages in transformMessages

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When 429/500 errors occur during tool execution, empty assistant messages
with stopReason='error' get persisted. These break the tool_use -> tool_result
chain for Claude/Gemini APIs.

Added centralized filtering in transformMessages to skip assistant messages
with empty content and no tool calls. Provider-level filters remain for
defense-in-depth.
This commit is contained in:
Mario Zechner 2026-01-16 22:34:58 +01:00
parent d2f9ab110c
commit fbb74bb29e
11 changed files with 125 additions and 8 deletions
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6
packages/coding-agent/src/core/sdk.ts
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@ -438,8 +438,12 @@ export async function createAgentSession(options: CreateAgentSessionOptions = {}
time("discoverContextFiles");
const autoResizeImages = settingsManager.getImageAutoResize();
const shellCommandPrefix = settingsManager.getShellCommandPrefix();
// Create ALL built-in tools for the registry (extensions can enable any of them)
const allBuiltInToolsMap = createAllTools(cwd, { read: { autoResizeImages } });
const allBuiltInToolsMap = createAllTools(cwd, {
read: { autoResizeImages },
bash: { commandPrefix: shellCommandPrefix },
});
// Determine initially active built-in tools (default: read, bash, edit, write)
const defaultActiveToolNames: ToolName[] = ["read", "bash", "edit", "write"];
const initialActiveToolNames: ToolName[] = options.tools