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fix silent error when agent writes to non existing file

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This commit is contained in:
David Halim 2026-04-23 02:19:28 +08:00
parent b8b440a107
commit 71dfbc293c
1 changed files with 24 additions and 0 deletions
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24
src/vs/workbench/contrib/void/browser/toolsService.ts
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@ -443,6 +443,19 @@ export class ToolsService implements IToolsService {
},
rewrite_file: async ({ uri, newContent }) => {
// Check file existence BEFORE `initializeModel` — the latter silently
// swallows FileNotFound (catches and logs) and returns void, making the
// whole chain (initializeModel → instantlyRewriteFile → _startStreamingDiffZone
// → "if (!model) return") fall through quietly. Net result before this
// fix: agent sees "Change successfully made" with zero lint errors, but
// nothing actually got written. Reported by the user as "rewrite_file
// only works after create_file_or_folder is called, otherwise it
// returns without error". Auto-creating here matches the intent of
// `rewrite_file` (produce a file with the given contents) and aligns
// with user preference for this tool specifically.
if (!(await fileService.exists(uri))) {
await fileService.createFile(uri)
}
await voidModelService.initializeModel(uri)
if (this.commandBarService.getStreamState(uri) === 'streaming') {
throw new Error(`Another LLM is currently making changes to this file. Please stop streaming for now and ask the user to resume later.`)
@ -459,6 +472,17 @@ export class ToolsService implements IToolsService {
},
edit_file: async ({ uri, searchReplaceBlocks }) => {
// Same silent-fallthrough issue as rewrite_file (see comment there),
// but the right behavior is different: edit_file uses search/replace
// blocks which require existing content to match against. Auto-creating
// an empty file would make every search block fail to match — silent
// no-op again. Throwing a clear error is the honest behavior and
// nudges the agent toward the right alternative (rewrite_file for
// wholesale new-file authoring, create_file_or_folder + edit_file
// for incremental build-up).
if (!(await fileService.exists(uri))) {
throw new Error(`File not found at ${uri.fsPath}. edit_file requires an existing file to apply search/replace blocks against. Use rewrite_file to create a new file with full contents, or create_file_or_folder first then edit_file.`)
}
await voidModelService.initializeModel(uri)
if (this.commandBarService.getStreamState(uri) === 'streaming') {
throw new Error(`Another LLM is currently making changes to this file. Please stop streaming for now and ask the user to resume later.`)