[codex] ROY-15: we should sort the issue/tasks by priorty

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  check:
+    name: Check, typecheck, and test
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Bun
+        uses: oven-sh/setup-bun@v2
+
+      - name: Install dependencies
+        run: bun install --frozen-lockfile
+
+      - name: Check formatting and lint
+        run: bun run check
+
+      - name: Typecheck
+        run: bun run typecheck
+
+      - name: Test
+        run: bun test

README.md

@@ -72,6 +72,9 @@ Optional:
 - `PIV_DRY_RUN=1` to avoid Linear/GitHub mutations
 - `PIV_DEV_MODE=1` to stream Codex stdout/stderr logs during runs
 - `CODEX_SANDBOX` (optional; leave empty to disable sandbox, or set `read-only`, `workspace-write`, `danger-full-access`)
+- `CODEX_MODEL_PLAN` (optional; overrides planning model)
+- `CODEX_MODEL_IMPLEMENT` (optional; overrides implementation model)
+- `CODEX_MODEL_REVIEW_TEST` (optional; overrides review/testing model)
 - `CODEX_HOME` to override Codex runtime state directory
 - `PIV_LOG_LEVEL` (optional; default `info`)
 - `PIV_LOG_PRETTY` (optional; default `1` in TTY, `0` otherwise)
@@ -107,3 +110,4 @@ bun test
 
 - Run with authenticated `gh` (`gh auth status`).
 - Codex uses the default CLI home unless you explicitly set `CODEX_HOME`.
+- Linear integration uses the official `@linear/sdk` client.

package.json

@@ -22,6 +22,7 @@
 		"typescript": "^5.9.3"
 	},
 	"dependencies": {
+		"@linear/sdk": "^83.0.0",
 		"pino": "^10.3.1",
 		"pino-pretty": "^13.1.3"
 	}

piv-loop.config.ts

@@ -36,6 +36,13 @@ const config: DeepPartial<PivLoopRootConfig> = {
 		},
 		autoCreateLabels: process.env.LINEAR_AUTO_CREATE_LABELS !== "0",
 	},
+	codex: {
+		models: {
+			plan: "gpt-5.5",
+			implement: "gpt-5.3-codex",
+			reviewTest: "gpt-5.3-codex",
+		},
+	},
 	skills: {
 		plan: path.join(cwd, "skills", "piv-plan", "SKILL.md"),
 		implement: path.join(cwd, "skills", "piv-implement", "SKILL.md"),

src/codex.ts

@@ -13,6 +13,7 @@ export function buildCodexExecArgs(
 	config: ResolvedProjectConfig,
 	prompt: string,
 	outputFile: string,
+	modelOverride?: string,
 ): string[] {
 	const args = [
 		"exec",
@@ -23,8 +24,9 @@ export function buildCodexExecArgs(
 		"--output-last-message",
 		outputFile,
 	];
-	if (config.codex.model) {
-		args.push("--model", config.codex.model);
+	const model = modelOverride ?? config.codex.model;
+	if (model) {
+		args.push("--model", model);
 	}
 	if (config.codex.sandbox) {
 		args.push("--sandbox", config.codex.sandbox);
@@ -38,19 +40,19 @@ export function buildCodexResumeArgs(
 	sessionId: string,
 	prompt: string,
 	outputFile: string,
+	modelOverride?: string,
 ): string[] {
 	const args = [
 		"exec",
 		"resume",
 		"--json",
 		"--skip-git-repo-check",
-		"--cd",
-		config.executionPath,
 		"--output-last-message",
 		outputFile,
 	];
-	if (config.codex.model) {
-		args.push("--model", config.codex.model);
+	const model = modelOverride ?? config.codex.model;
+	if (model) {
+		args.push("--model", model);
 	}
 	args.push(sessionId, prompt);
 	return args;
@@ -60,9 +62,10 @@ export async function runPlanSession(
 	config: ResolvedProjectConfig,
 	prompt: string,
 ): Promise<CodexResult> {
+	const model = config.codex.models?.plan ?? config.codex.model;
 	return runCodex(
 		config,
-		buildCodexExecArgs(config, prompt, await nextOutputFile(config)),
+		buildCodexExecArgs(config, prompt, await nextOutputFile(config), model),
 	);
 }
 
@@ -71,13 +74,15 @@ export async function runResumeSession(
 	sessionId: string,
 	prompt: string,
 ): Promise<CodexResult> {
+	const model = config.codex.models?.implement ?? config.codex.model;
 	return runCodex(
 		config,
 		buildCodexResumeArgs(
 			config,
 			sessionId,
 			prompt,
 			await nextOutputFile(config),
+			model,
 		),
 	);
 }
@@ -86,7 +91,14 @@ export async function runReviewSession(
 	config: ResolvedProjectConfig,
 	prompt: string,
 ): Promise<CodexResult> {
-	return runPlanSession(config, prompt);
+	const model =
+		config.codex.models?.reviewTest ??
+		config.codex.models?.implement ??
+		config.codex.model;
+	return runCodex(
+		config,
+		buildCodexExecArgs(config, prompt, await nextOutputFile(config), model),
+	);
 }
 
 async function runCodex(

src/config.ts

@@ -78,6 +78,11 @@ function buildEnvBase(cwd: string): ProjectRuntimeConfig {
 		codex: {
 			binary: env.CODEX_BINARY ?? "codex",
 			model: env.CODEX_MODEL,
+			models: {
+				plan: env.CODEX_MODEL_PLAN,
+				implement: env.CODEX_MODEL_IMPLEMENT,
+				reviewTest: env.CODEX_MODEL_REVIEW_TEST,
+			},
 			sandbox,
 			codexHome,
 		},