update codex to 5.2 (#235)

agents/claude.ts

@@ -13,15 +13,15 @@ import { installFromNpmTarball } from "../utils/install.ts";
 import { spawn } from "../utils/subprocess.ts";
 import { type AgentRunContext, agent } from "./shared.ts";
 
-// Model selection based on effort level
-// Note: mini uses Haiku for speed, auto uses opusplan for balance, max uses Opus for capability
+// model selection based on effort level
+// these are aliases that always resolve to the latest version
 const claudeEffortModels: Record<Effort, string> = {
   mini: "haiku",
   auto: "opusplan",
   max: "opus",
 };
 
-// FUTURE: Consider using Anthropic's "effort" parameter (beta) with Opus 4.5 for all tasks.
+// FUTURE: Consider using Anthropic's "effort" parameter (beta) with Opus.
 // This would allow a single model with effort levels ("low", "medium", "high") controlling
 // token spend across responses, tool calls, and thinking. Requires beta header "effort-2025-11-24".
 // See: https://platform.claude.com/docs/en/build-with-claude/effort

agents/codex.ts

@@ -14,13 +14,13 @@ import { type AgentRunContext, agent } from "./shared.ts";
 
 // configuration based on effort level
 // https://developers.openai.com/codex/models/
-// gpt-5.2-codex is not yet available via api key (even through codex cli)
+// gpt-5.3-codex announced 2026-02-05 but not yet available in codex CLI
 type ModelReasoningEffort = "minimal" | "low" | "medium" | "high" | "xhigh";
 type CodexEffortConfig = { model: string; reasoningEffort?: ModelReasoningEffort };
 const codexEffortConfig: Record<Effort, CodexEffortConfig> = {
   mini: { model: "gpt-5.1-codex-mini", reasoningEffort: "low" },
-  auto: { model: "gpt-5.1-codex" },
-  max: { model: "gpt-5.1-codex-max", reasoningEffort: "high" },
+  auto: { model: "gpt-5.2-codex" },
+  max: { model: "gpt-5.2-codex", reasoningEffort: "high" },
 };
 
 function writeCodexConfig(ctx: AgentRunContext): string {

entry

@@ -144439,8 +144439,8 @@ import { mkdirSync as mkdirSync3, writeFileSync as writeFileSync7 } from "node:f
 import { join as join10 } from "node:path";
 var codexEffortConfig = {
   mini: { model: "gpt-5.1-codex-mini", reasoningEffort: "low" },
-  auto: { model: "gpt-5.1-codex" },
-  max: { model: "gpt-5.1-codex-max", reasoningEffort: "high" }
+  auto: { model: "gpt-5.2-codex" },
+  max: { model: "gpt-5.2-codex", reasoningEffort: "high" }
 };
 function writeCodexConfig(ctx) {
   const codexDir = join10(ctx.tmpdir, ".codex");