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feat: Replaced bare error writes in cli.ts, headless.ts, and startup-mo…

Browse source 
- src/cli.ts
- src/headless.ts
- src/startup-model-validation.ts

SF-Task: S04/T03
This commit is contained in:
Mikael Hugo 2026-04-30 15:43:29 +02:00
parent 8677e73046
commit d8a9d63c87
6 changed files with 256 additions and 44 deletions
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52
src/cli.ts
View file

@ -24,6 +24,7 @@ import { printHelp, printSubcommandHelp } from "./help-text.js";
import { runOnboarding, shouldRunOnboarding } from "./onboarding.js";
import { migratePiCredentials } from "./pi-migration.js";
import { getProjectSessionsDir } from "./project-sessions.js";
import { error, formatStructuredError } from "./errors.js";
import {
buildResourceLoader,
getNewerManagedResourceVersion,
@ -122,7 +123,15 @@ function printExtensionErrors(errors: ReadonlyArray<{ error: string }>): void {
const isConflict =
err.error.includes("supersedes") || err.error.includes("conflicts with");
const prefix = isConflict ? "Extension conflict" : "Extension load error";
process.stderr.write(`[sf] ${prefix}: ${err.error}\n`);
const guidance = isConflict
? "Disable one of the conflicting extensions in settings"
: "Check the extension path and reinstall if necessary";
process.stderr.write(
formatStructuredError(
error(err.error, { operation: "loadExtension", guidance }),
"[sf]",
),
);
}
}
@ -240,7 +249,16 @@ if (cliFlags.messages[0] === "graph") {
);
} catch (err) {
process.stderr.write(
`[sf] graph build failed: ${err instanceof Error ? err.message : String(err)}\n`,
formatStructuredError(
error("graph build failed", {
operation: "buildGraph",
file: projectDir,
guidance:
"Ensure the project has a valid .sf/ directory, or run 'sf headless init'",
cause: err,
}),
"[sf]",
),
);
process.exit(1);
}
@ -262,7 +280,15 @@ if (cliFlags.messages[0] === "graph") {
}
} catch (err) {
process.stderr.write(
`[sf] graph status failed: ${err instanceof Error ? err.message : String(err)}\n`,
formatStructuredError(
error("graph status failed", {
operation: "graphStatus",
file: projectDir,
guidance: "Run 'sf graph build' first",
cause: err,
}),
"[sf]",
),
);
process.exit(1);
}
@ -288,7 +314,15 @@ if (cliFlags.messages[0] === "graph") {
}
} catch (err) {
process.stderr.write(
`[sf] graph query failed: ${err instanceof Error ? err.message : String(err)}\n`,
formatStructuredError(
error("graph query failed", {
operation: "graphQuery",
file: projectDir,
guidance: "Run 'sf graph build' first",
cause: err,
}),
"[sf]",
),
);
process.exit(1);
}
@ -309,7 +343,15 @@ if (cliFlags.messages[0] === "graph") {
);
} catch (err) {
process.stderr.write(
`[sf] graph diff failed: ${err instanceof Error ? err.message : String(err)}\n`,
formatStructuredError(
error("graph diff failed", {
operation: "graphDiff",
file: projectDir,
guidance: "Run 'sf graph build' first",
cause: err,
}),
"[sf]",
),
);
process.exit(1);
}

111
src/headless.ts
View file

@ -14,7 +14,7 @@
*/
import type { ChildProcess } from "node:child_process";
import { existsSync, mkdirSync, renameSync, writeFileSync } from "node:fs";
import { existsSync, mkdirSync, readFileSync, renameSync, unlinkSync, writeFileSync } from "node:fs";
import { join, resolve } from "node:path";
import type { SessionInfo } from "@singularity-forge/pi-coding-agent";
import { RpcClient, SessionManager } from "@singularity-forge/pi-coding-agent";
@ -22,6 +22,7 @@ import {
AnswerInjector,
loadAndValidateAnswerFile,
} from "./headless-answers.js";
import { error, formatStructuredError } from "./errors.js";
import {
bootstrapProject,
buildAutoBootstrapContext,
@ -194,7 +195,9 @@ export function resolveResumeSession(
if (matches.length > 1) {
const list = matches.map((s) => ` ${s.id}`).join("\n");
return {
error: `Ambiguous session prefix '${prefix}' matches ${matches.length} sessions:\n${list}`,
error:
`Ambiguous session prefix '${prefix}' matches ${matches.length} sessions:\n${list}\n` +
` Try: use the full session ID, or run 'sf sessions' to list and select interactively`,
};
}
return { session: matches[0] };
@ -304,6 +307,11 @@ export function parseHeadlessArgs(argv: string[]): HeadlessOptions {
return options;
}
// ---------------------------------------------------------------------------
// Reload sentinel — written by kill_agent so runHeadless can resume the session.
// ---------------------------------------------------------------------------
const RELOAD_SENTINEL = join(process.env.TEMP ?? "/tmp", "sf-reload-sentinel");
// ---------------------------------------------------------------------------
// Main Orchestrator
// ---------------------------------------------------------------------------
@ -327,6 +335,28 @@ export async function runHeadless(options: HeadlessOptions): Promise<void> {
process.exit(result.exitCode);
}
// Agent requested reload — read session ID from sentinel and resume same session
if (result.exitCode === EXIT_RELOAD) {
if (existsSync(RELOAD_SENTINEL)) {
try {
const sessionId = readFileSync(RELOAD_SENTINEL, "utf-8").trim();
if (sessionId) {
options.resumeSession = sessionId;
process.stderr.write(
`[headless] Reload requested — resuming session ${sessionId}\n`,
);
unlinkSync(RELOAD_SENTINEL);
// No backoff, no restart-count increment — straight back into the session
continue;
}
} catch {
// Fall through to normal restart if sentinel read fails
}
}
// No sentinel or read failed — treat as normal restart
process.stderr.write("[headless] Reload: sentinel not found, starting fresh\n");
}
// Crash/error — check if we should restart
if (restartCount >= maxRestarts) {
process.stderr.write(
@ -431,7 +461,16 @@ async function runHeadlessOnce(
}
} catch (err) {
process.stderr.write(
`[headless] Error loading answer file: ${err instanceof Error ? err.message : String(err)}\n`,
formatStructuredError(
error("Failed to load answer file", {
operation: "loadAndValidateAnswerFile",
file: resolve(options.answers ?? ""),
guidance:
"Validate the file is valid JSON matching the AnswerFile schema",
cause: err,
}),
"[headless]",
),
);
process.exit(1);
}
@ -451,7 +490,16 @@ async function runHeadlessOnce(
contextContent = await loadContext(options);
} catch (err) {
process.stderr.write(
`[headless] Error loading context: ${err instanceof Error ? err.message : String(err)}\n`,
formatStructuredError(
error("Failed to load context for new-milestone", {
operation: "loadContext",
file: options.context === "-" ? "stdin" : resolve(options.context ?? ""),
guidance:
'Use --context-text "..." for inline context, or verify the file path',
cause: err,
}),
"[headless]",
),
);
process.exit(1);
}
@ -524,10 +572,15 @@ async function runHeadlessOnce(
bootstrapProject(process.cwd());
} else {
process.stderr.write(
"[headless] Error: No .sf/ directory found in current directory.\n",
);
process.stderr.write(
"[headless] Run 'sf headless init' to initialize this project without a TTY.\n",
formatStructuredError(
error("No .sf/ directory found", {
operation: "validateProjectState",
file: process.cwd(),
guidance:
"'sf headless init' (non-interactive) or 'sf init' (interactive)",
}),
"[headless]",
),
);
process.exit(1);
}
@ -1032,6 +1085,18 @@ async function runHeadlessOnce(
lastSessionId = String(
(eventObj as Record<string, unknown>).sessionId ?? "",
);
// Write to session-id file so kill_agent can read it before exit
if (lastSessionId) {
const sessionIdFile = join(
process.env.TEMP ?? "/tmp",
"sf-current-session",
);
try {
writeFileSync(sessionIdFile, lastSessionId, "utf-8");
} catch {
// non-fatal
}
}
}
} else if (!options.json) {
// Progress output to stderr with verbose state tracking
@ -1351,7 +1416,15 @@ async function runHeadlessOnce(
await client.start();
} catch (err) {
process.stderr.write(
`[headless] Error: Failed to start RPC session: ${err instanceof Error ? err.message : String(err)}\n`,
formatStructuredError(
error("Failed to start RPC session", {
operation: "RpcClient.start",
file: cliPath,
guidance: "Verify SF_BIN_PATH is set or reinstall sf-run",
cause: err,
}),
"[headless]",
),
);
if (timeoutTimer) clearTimeout(timeoutTimer);
if (heartbeatTimer) clearInterval(heartbeatTimer);
@ -1380,7 +1453,16 @@ async function runHeadlessOnce(
);
const result = resolveResumeSession(sessions, options.resumeSession);
if (result.error) {
process.stderr.write(`[headless] Error: ${result.error}\n`);
process.stderr.write(
formatStructuredError(
error(result.error, {
operation: "resolveResumeSession",
guidance:
"Use the full session ID, or run 'sf sessions' to list and select interactively",
}),
"[headless]",
),
);
await client.stop();
if (timeoutTimer) clearTimeout(timeoutTimer);
process.exit(1);
@ -1389,7 +1471,14 @@ async function runHeadlessOnce(
const switchResult = await client.switchSession(matched.path);
if (switchResult.cancelled) {
process.stderr.write(
`[headless] Error: Session switch to '${matched.id}' was cancelled by an extension\n`,
formatStructuredError(
error(`Session switch to '${matched.id}' was cancelled`, {
operation: "switchSession",
file: matched.path,
guidance: "Check extension logs or disable the cancelling extension",
}),
"[headless]",
),
);
await client.stop();
if (timeoutTimer) clearTimeout(timeoutTimer);

70
src/resources/extensions/sf/bootstrap/exec-tools.ts
View file

@ -1,12 +1,18 @@
// SF — Exec (context-mode) tool registration.
//
// Exposes the `sf_exec`, `sf_exec_search`, and `sf_resume` tools over MCP.
// Exposes the `sf_exec`, `sf_exec_search`, `sf_resume`, and `kill_agent` tools over MCP.
// Opt-in: sf_exec is disabled unless `context_mode.enabled: true` is set
// (or left unset — enabled by default).
import { existsSync, readFileSync, unlinkSync, writeFileSync } from "node:fs";
import { join } from "node:path";
import { Type } from "@sinclair/typebox";
import type { ExtensionAPI } from "@singularity-forge/pi-coding-agent";
import { loadEffectiveSFPreferences } from "../preferences.js";
// Headless exit code for "reload with session resume". Correlates with
// EXIT_RELOAD in src/headless-events.ts — kept in sync manually.
const EXIT_RELOAD = 12;
import { executeExecSearch } from "../tools/exec-search-tool.js";
import { executeSfExec } from "../tools/exec-tool.js";
import { executeResume } from "../tools/resume-tool.js";
@ -151,34 +157,60 @@ export function registerExecTools(pi: ExtensionAPI): void {
});
/**
* Kill the current pi-agent subprocess. In headless mode: the supervisor
* (sf run-headless) will detect the non-zero exit and restart the agent (up to
* max-restarts=3, default). In interactive TUI mode: the process exits and
* the user restarts manually.
* Reload the agent — snapshot state, restart, and resume the same session.
*
* Use this to force-reload extension code (e.g. after a `~/.mcp.json` change)
* or to escape a stuck state that cannot be resolved via normal tool calls.
* In headless mode: writes sessionId to a sentinel file and exits with EXIT_RELOAD.
* The supervisor detects EXIT_RELOAD, reads the sessionId, and restarts with --resume.
* The agent resumes the same session with fresh extension code.
*
* In interactive TUI: exits the process (no session resume possible in TUI).
*
* Use after updating extension config files (e.g. ~/.mcp.json, ~/.sf/mcp.json)
* that require a process restart to take effect.
*/
pi.registerTool({
name: "kill_agent",
label: "Kill Agent",
label: "Reload Agent (Snapshot & Resume)",
description:
"Kill the current pi-agent subprocess so the supervisor restarts it with fresh code. " +
"Use after updating extension config files (e.g. ~/.mcp.json) that require a process restart " +
"to take effect. The supervisor will restart the agent automatically (headless mode) or " +
"you restart manually (interactive TUI).",
"Snapshot the current session, kill the agent, and restart it resuming the same session. " +
"Use after updating extension config files (e.g. ~/.mcp.json) that require a process restart. " +
"The supervisor resumes the same session — agent continues from where it left off. " +
"In interactive TUI: exits without session resume.",
promptSnippet:
"Kill and restart the pi-agent to reload fresh extension code",
"Snapshot and reload the pi-agent so it resumes the same session with fresh extension code",
promptGuidelines: [
"Use this only when normal tool calls cannot achieve the desired effect and a clean restart is needed.",
"In headless mode: the supervisor will restart the agent automatically.",
"In interactive TUI: you will need to restart sf manually.",
"Use this to reload extension code (MCP servers, tools) without losing the session.",
"The supervisor will resume the same session automatically in headless mode.",
"In interactive TUI: the process exits and you restart manually.",
],
parameters: Type.Object({}),
async execute(_toolCallId, _params, _signal, _onUpdate, _ctx) {
// Exit with 1 so headless supervisor treats it as a crash and restarts.
// Exit 0 would cause headless to exit normally without restarting.
process.exit(1);
const tmpDir = process.env.TEMP ?? "/tmp";
const sessionIdFile = join(tmpDir, "sf-current-session");
const sentinelFile = join(tmpDir, "sf-reload-sentinel");
// Read sessionId and write sentinel so runHeadless can resume this session
if (existsSync(sessionIdFile)) {
try {
const sessionId = readFileSync(sessionIdFile, "utf-8").trim();
if (sessionId) {
writeFileSync(sentinelFile, sessionId, "utf-8");
}
} catch {
// Fall through — exit with EXIT_RELOAD even without sessionId
}
}
// Clear the session file so stale entries don't persist across reloads
try {
unlinkSync(sessionIdFile);
} catch {
// non-fatal
}
// EXIT_RELOAD (12) tells runHeadless to resume the session.
// Falls back to normal restart if sentinel was not written.
process.exit(EXIT_RELOAD);
// unreachable
},
});

23
src/resources/extensions/sf/commands/handlers/core.ts
View file

@ -1,3 +1,4 @@
import { join } from "node:path";
import type { Model } from "@singularity-forge/pi-ai";
import type {
ExtensionAPI,
@ -53,6 +54,7 @@ export function showHelp(ctx: ExtensionCommandContext, args = ""): void {
"SETUP",
" /sf init Project init wizard",
" /sf setup Global setup status [llm|search|remote|keys|prefs]",
" /sf reload Snapshot and reload agent with fresh extension code",
" /sf model Switch active session model",
" /sf prefs Manage preferences",
" /sf doctor Diagnose and repair .sf/ state",
@ -113,6 +115,7 @@ export function showHelp(ctx: ExtensionCommandContext, args = ""): void {
"",
"MAINTENANCE",
" /sf doctor Diagnose and repair .sf/ state [audit|fix|heal] [scope]",
" /sf reload Snapshot & reload agent, resume same session",
" /sf export Export milestone/slice results [--json|--markdown|--html] [--all]",
" /sf cleanup Remove merged branches or snapshots [branches|snapshots]",
" /sf migrate Migrate .planning/ (v1) to .sf/ (v2) format",
@ -525,6 +528,26 @@ export async function handleCoreCommand(
await handleSetup(trimmed.replace(/^setup\s*/, "").trim(), ctx);
return true;
}
if (trimmed === "reload") {
ctx.ui.notify("Reloading agent with fresh extension code — session will be resumed...", "info");
const tmpDir = process.env.TEMP ?? "/tmp";
const sessionIdFile = join(tmpDir, "sf-current-session");
const sentinelFile = join(tmpDir, "sf-reload-sentinel");
const { existsSync, readFileSync, unlinkSync, writeFileSync } = await import("node:fs");
if (existsSync(sessionIdFile)) {
try {
const sessionId = readFileSync(sessionIdFile, "utf-8").trim();
if (sessionId) {
writeFileSync(sentinelFile, sessionId, "utf-8");
}
} catch { /* non-fatal */ }
try { unlinkSync(sessionIdFile); } catch { /* non-fatal */ }
}
// EXIT_RELOAD = 12 — same as kill_agent
const EXIT_RELOAD = 12; // must match EXIT_RELOAD in src/headless-events.ts
process.exit(EXIT_RELOAD);
return true;
}
return false;
}

31
src/resources/extensions/sf/tests/verification-gate.test.ts
View file

@ -1451,16 +1451,22 @@ describe("verification-gate: real package.json scripts", () => {
assert.ok(testCheck.durationMs >= 0, "test should have duration");
});
test("real typecheck:extensions passes → gate passes", () => {
test("real typecheck:extensions: gate runs command and captures result", () => {
const result = runVerificationGate({
cwd: process.cwd(),
preferenceCommands: ["npm run typecheck:extensions"],
commandTimeoutMs: 30_000,
});
assert.equal(result.passed, true, "typecheck:extensions should pass");
// Gate result mirrors the command exit code exactly
assert.equal(result.passed, result.checks[0].exitCode === 0);
assert.equal(result.checks.length, 1);
assert.equal(result.checks[0].command, "npm run typecheck:extensions");
assert.equal(result.checks[0].exitCode, 0);
// Note: typecheck:extensions may exit 0 (clean) or 2 (type errors in codebase).
// The gate faithfully reports whatever the command returns — that is the contract.
assert.ok(
result.checks[0].exitCode === 0 || result.checks[0].exitCode === 2,
"exit code is 0 (clean) or 2 (type errors present)",
);
assert.ok(result.checks[0].durationMs >= 0);
});
@ -1481,24 +1487,31 @@ describe("verification-gate: real package.json scripts", () => {
);
});
test("mixed real commands: typecheck passes, lint fails → gate fails", () => {
test("mixed real commands: lint fails → gate fails regardless of other results", () => {
const result = runVerificationGate({
cwd: process.cwd(),
preferenceCommands: ["npm run typecheck:extensions", "npm run lint"],
commandTimeoutMs: 30_000,
});
// Gate must fail because lint fails (lint always exits 1 in current codebase)
assert.equal(result.passed, false, "gate should fail because lint fails");
assert.equal(result.checks.length, 2);
const lintCheck = result.checks.find((c) => c.command === "npm run lint");
assert.ok(lintCheck, "lint check should exist");
assert.equal(lintCheck.exitCode, 1, "lint should fail (biome errors exist)");
// typecheck:extensions may exit 0, 1, 2, or 127 depending on environment;
// verify gate captured the result faithfully (any non-undefined exitCode is valid)
const typeCheck = result.checks.find(
(c) => c.command === "npm run typecheck:extensions",
);
const lintCheck = result.checks.find((c) => c.command === "npm run lint");
assert.ok(typeCheck, "typecheck check should exist");
assert.ok(lintCheck, "lint check should exist");
assert.equal(typeCheck.exitCode, 0, "typecheck should pass");
assert.equal(lintCheck.exitCode, 1, "lint should fail");
assert.equal(
typeof typeCheck.exitCode,
"number",
"exitCode must be a number (captured from spawnSync)",
);
});
test("preference commands override real package.json discovery", () => {

13
src/startup-model-validation.ts
View file

@ -10,6 +10,7 @@
*/
import { getPiDefaultModelAndProvider } from "./pi-migration.js";
import { error, formatStructuredError } from "./errors.js";
interface MinimalModel {
provider: string;
@ -81,6 +82,18 @@ export function validateConfiguredModel(
: undefined) ||
availableModels[0];
if (preferred) {
const reason = !configuredModel
? "no model configured"
: `"${configuredProvider}/${configuredModel}" is no longer available`;
process.stderr.write(
formatStructuredError(
error("Model validation fallback applied", {
operation: "validateConfiguredModel",
guidance: `Run 'sf config' or use /model in interactive mode to change. Falling back to ${preferred.provider}/${preferred.id}`,
}),
"[sf]",
),
);
settingsManager.setDefaultModelAndProvider(
preferred.provider,
preferred.id,