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fix(core): harden structured output invariants

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This commit is contained in:
Kit Langton 2026-07-20 15:24:57 -04:00
commit 98be51b74c
14 changed files with 540 additions and 265 deletions
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9
packages/core/test/tool-patch.test.ts
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@ -224,8 +224,8 @@ describe("PatchTool", () => {
(tmp) => {
reset()
const target = path.join(tmp.path, "large.txt")
const before = "x".repeat(9_000)
const after = "y".repeat(9_000)
const before = "x".repeat(20_000)
const after = "y".repeat(20_000)
return Effect.promise(() => fs.writeFile(target, `${before}\n`)).pipe(
Effect.andThen(
withTool(tmp.path, (registry) =>
@ -238,7 +238,10 @@ describe("PatchTool", () => {
expect(Buffer.byteLength(JSON.stringify(structured))).toBeLessThanOrEqual(
ToolOutputStore.MAX_STRUCTURED_BYTES,
)
expect(() => parsePatch(structured.files[0]?.patch ?? "")).not.toThrow()
const hunk = parsePatch(structured.files[0]?.patch ?? "")[0]?.hunks[0]
expect(hunk?.lines.some((line) => line.startsWith("-"))).toBe(true)
expect(hunk?.lines.some((line) => line.startsWith("+"))).toBe(true)
expect(hunk).toMatchObject({ oldLines: 2, newLines: 2 })
expect(structured).toMatchObject({
applied: [{ type: "update", resource: "large.txt" }],
files: [{ file: "large.txt", patch: expect.stringContaining("... truncated ...") }],