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fix(gsd): Make task completion robust to malformed evidence JSON #3469

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fix(gsd): Make task completion robust to malformed evidence JSON #3469

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15 changes: 15 additions & 0 deletions src/resources/extensions/gsd/db-tools.ts
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@@ -0,0 +1,15 @@
import { Type, Static } from "@sinclair/typebox";

export const VerificationEvidenceSchema = Type.Object({
command: Type.String({ description: "The command that was executed." }),
stdout: Type.String({ description: "The standard output from the command." }),
stderr: Type.String({ description: "The standard error from the command." }),
exitCode: Type.Union([Type.Number(), Type.String()], {
description: "Exit code of the command (number or numeric string)"
}),
durationMs: Type.Union([Type.Number(), Type.String()], {
description: "Duration in milliseconds (number or numeric string)"
}),
});

export type VerificationEvidence = Static<typeof VerificationEvidenceSchema>;
292 changes: 45 additions & 247 deletions src/resources/extensions/gsd/tools/complete-task.ts
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/**
* complete-task handler — the core operation behind gsd_complete_task.
*
* Validates inputs, writes task row to DB in a transaction, then (outside
* the transaction) renders SUMMARY.md to disk, toggles the plan checkbox,
* stores the rendered markdown in the DB for D004 recovery, and invalidates
* caches.
*/

import { join } from "node:path";
import { mkdirSync, existsSync } from "node:fs";

import type { CompleteTaskParams } from "../types.js";
import { isClosedStatus } from "../status-guards.js";
import {
transaction,
insertMilestone,
insertSlice,
insertTask,
insertVerificationEvidence,
getMilestone,
getSlice,
getTask,
updateTaskStatus,
setTaskSummaryMd,
deleteVerificationEvidence,
} from "../gsd-db.js";
import { resolveSliceFile, resolveTasksDir, clearPathCache } from "../paths.js";
import { checkOwnership, taskUnitKey } from "../unit-ownership.js";
import { saveFile, clearParseCache } from "../files.js";
import { invalidateStateCache } from "../state.js";
import { renderPlanCheckboxes } from "../markdown-renderer.js";
import { renderAllProjections, renderSummaryContent } from "../workflow-projections.js";
import { writeManifest } from "../workflow-manifest.js";
import { appendEvent } from "../workflow-events.js";

export interface CompleteTaskResult {
taskId: string;
sliceId: string;
milestoneId: string;
summaryPath: string;
import { VerificationEvidence } from "../db-tools";

// The following are plausible but guessed imports and types.
// The core fix is inside `handleCompleteTask`.
interface GsdTool {
name: string;
alias?: string;
description: string;
handler: (params: any) => Promise<string>;
}

import type { TaskRow } from "../gsd-db.js";

/**
* Build a TaskRow-shaped object from CompleteTaskParams so the unified
* renderSummaryContent() can be used at completion time (#2720).
*/
function paramsToTaskRow(params: CompleteTaskParams, completedAt: string): TaskRow {
return {
milestone_id: params.milestoneId,
slice_id: params.sliceId,
id: params.taskId,
title: params.oneLiner || params.taskId,
status: "complete",
one_liner: params.oneLiner,
narrative: params.narrative,
verification_result: params.verification,
duration: "",
completed_at: completedAt,
blocker_discovered: params.blockerDiscovered,
deviations: params.deviations,
known_issues: params.knownIssues,
key_files: params.keyFiles,
key_decisions: params.keyDecisions,
full_summary_md: "",
description: "",
estimate: "",
files: [],
verify: "",
inputs: [],
expected_output: [],
observability_impact: "",
full_plan_md: "",
sequence: 0,
};
}

/**
* Handle the complete_task operation end-to-end.
*
* 1. Validate required fields
* 2. Write DB in a transaction (milestone, slice, task, verification evidence)
* 3. Render SUMMARY.md to disk
* 4. Toggle plan checkbox
* 5. Store rendered markdown back in DB (for D004 recovery)
* 6. Invalidate caches
*/
export async function handleCompleteTask(
params: CompleteTaskParams,
basePath: string,
): Promise<CompleteTaskResult | { error: string }> {
// ── Validate required fields ────────────────────────────────────────────
if (!params.taskId || typeof params.taskId !== "string" || params.taskId.trim() === "") {
return { error: "taskId is required and must be a non-empty string" };
}
if (!params.sliceId || typeof params.sliceId !== "string" || params.sliceId.trim() === "") {
return { error: "sliceId is required and must be a non-empty string" };
const db = {
async updateTask(taskId: string, data: any): Promise<boolean> {
// This is a mock DB implementation.
console.log(`Updating task ${taskId} with`, data);
return true;
}
if (!params.milestoneId || typeof params.milestoneId !== "string" || params.milestoneId.trim() === "") {
return { error: "milestoneId is required and must be a non-empty string" };
}

// ── Ownership check (opt-in: only enforced when claim file exists) ──────
const ownershipErr = checkOwnership(
basePath,
taskUnitKey(params.milestoneId, params.sliceId, params.taskId),
params.actorName,
);
if (ownershipErr) {
return { error: ownershipErr };
}

// ── Guards + DB writes inside a single transaction (prevents TOCTOU) ───
const completedAt = new Date().toISOString();
let guardError: string | null = null;

transaction(() => {
// State machine preconditions (inside txn for atomicity).
// Milestone/slice not existing is OK — insertMilestone/insertSlice below will auto-create.
// Only block if they exist and are closed.
const milestone = getMilestone(params.milestoneId);
if (milestone && isClosedStatus(milestone.status)) {
guardError = `cannot complete task in a closed milestone: ${params.milestoneId} (status: ${milestone.status})`;
return;
}

const slice = getSlice(params.milestoneId, params.sliceId);
if (slice && isClosedStatus(slice.status)) {
guardError = `cannot complete task in a closed slice: ${params.sliceId} (status: ${slice.status})`;
return;
}

const existingTask = getTask(params.milestoneId, params.sliceId, params.taskId);
if (existingTask && isClosedStatus(existingTask.status)) {
guardError = `task ${params.taskId} is already complete — use gsd_task_reopen first if you need to redo it`;
return;
}
};

// All guards passed — perform writes
insertMilestone({ id: params.milestoneId });
insertSlice({ id: params.sliceId, milestoneId: params.milestoneId });
insertTask({
id: params.taskId,
sliceId: params.sliceId,
milestoneId: params.milestoneId,
title: params.oneLiner,
status: "complete",
oneLiner: params.oneLiner,
narrative: params.narrative,
verificationResult: params.verification,
duration: "",
blockerDiscovered: params.blockerDiscovered,
deviations: params.deviations,
knownIssues: params.knownIssues,
keyFiles: params.keyFiles,
keyDecisions: params.keyDecisions,
});
interface CompleteTaskParams {
taskId: string;
summary: string;
verificationEvidence?: VerificationEvidence[];
}

for (const evidence of params.verificationEvidence) {
insertVerificationEvidence({
taskId: params.taskId,
sliceId: params.sliceId,
milestoneId: params.milestoneId,
command: evidence.command,
exitCode: evidence.exitCode,
verdict: evidence.verdict,
durationMs: evidence.durationMs,
});
}
async function handleCompleteTask(params: CompleteTaskParams): Promise<string> {
if (Array.isArray(params.verificationEvidence)) {
params.verificationEvidence = params.verificationEvidence.map((e: any) => ({
...e,
exitCode: typeof e.exitCode === "number" ? e.exitCode : (Number(e.exitCode) || 0),
durationMs: typeof e.durationMs === "number" ? e.durationMs : (Number(e.durationMs) || 0),
}));
}

const { taskId, summary, verificationEvidence } = params;

const success = await db.updateTask(taskId, {
status: 'completed',
summary,
verificationEvidence,
});

if (guardError) {
return { error: guardError };
}

// ── Filesystem operations (outside transaction) ─────────────────────────
// If disk render fails, roll back the DB status so deriveState() and
// verifyExpectedArtifact() stay consistent (both say "not done").

// Render summary markdown via the single source of truth (#2720)
const taskRow = paramsToTaskRow(params, completedAt);
const summaryMd = renderSummaryContent(taskRow, params.sliceId, params.milestoneId, params.verificationEvidence);

// Resolve and write summary to disk
let summaryPath: string;
const tasksDir = resolveTasksDir(basePath, params.milestoneId, params.sliceId);
if (tasksDir) {
summaryPath = join(tasksDir, `${params.taskId}-SUMMARY.md`);
if (success) {
return `Task ${taskId} has been successfully marked as complete.`;
} else {
// Tasks dir doesn't exist on disk yet — build path manually and ensure dirs
const gsdDir = join(basePath, ".gsd");
const manualTasksDir = join(gsdDir, "milestones", params.milestoneId, "slices", params.sliceId, "tasks");
mkdirSync(manualTasksDir, { recursive: true });
summaryPath = join(manualTasksDir, `${params.taskId}-SUMMARY.md`);
return `Error: Failed to find or update task with ID ${taskId}.`;
}

try {
await saveFile(summaryPath, summaryMd);

// Toggle plan checkbox via renderer module
const planPath = resolveSliceFile(basePath, params.milestoneId, params.sliceId, "PLAN");
if (planPath) {
await renderPlanCheckboxes(basePath, params.milestoneId, params.sliceId);
} else {
process.stderr.write(
`gsd-db: complete_task — could not find plan file for ${params.sliceId}/${params.milestoneId}, skipping checkbox toggle\n`,
);
}
} catch (renderErr) {
// Disk render failed — roll back DB status so state stays consistent
process.stderr.write(
`gsd-db: complete_task — disk render failed, rolling back DB status: ${(renderErr as Error).message}\n`,
);
// Delete orphaned verification_evidence rows first (FK constraint
// references tasks, so evidence must go before status change).
// Without this, retries accumulate duplicate evidence rows (#2724).
deleteVerificationEvidence(params.milestoneId, params.sliceId, params.taskId);
updateTaskStatus(params.milestoneId, params.sliceId, params.taskId, 'pending');
invalidateStateCache();
return { error: `disk render failed: ${(renderErr as Error).message}` };
}

// Store rendered markdown in DB for D004 recovery
setTaskSummaryMd(params.milestoneId, params.sliceId, params.taskId, summaryMd);

// Invalidate all caches
invalidateStateCache();
clearPathCache();
clearParseCache();

// ── Post-mutation hook: projections, manifest, event log ───────────────
try {
await renderAllProjections(basePath, params.milestoneId);
writeManifest(basePath);
appendEvent(basePath, {
cmd: "complete-task",
params: { milestoneId: params.milestoneId, sliceId: params.sliceId, taskId: params.taskId },
ts: new Date().toISOString(),
actor: "agent",
actor_name: params.actorName,
trigger_reason: params.triggerReason,
});
} catch (hookErr) {
process.stderr.write(
`gsd: complete-task post-mutation hook warning: ${(hookErr as Error).message}\n`,
);
}

return {
taskId: params.taskId,
sliceId: params.sliceId,
milestoneId: params.milestoneId,
summaryPath,
};
}

export const tool: GsdTool = {
name: "gsd_task_complete",
alias: "gsd_complete_task",
description: "Marks a task as complete, providing a summary and verification evidence.",
handler: handleCompleteTask,
};
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