diff --git a/.devcontainer/agent-versions.env b/.devcontainer/agent-versions.env
index 9a69945..afbd94f 100644
--- a/.devcontainer/agent-versions.env
+++ b/.devcontainer/agent-versions.env
@@ -2,12 +2,12 @@
 # Record installed agent versions in qualification receipts.
 CODEX_VERSION=latest
 # First Draft compatibility pins are independent of the agents' update policy.
-FIRSTDRAFT_CLI_VERSION=0.4.0
-# CLI 0.4.x uses First Draft API 0.4.x and defaults to local root output.
+FIRSTDRAFT_CLI_VERSION=0.6.0
+# CLI 0.6.x uses First Draft API 0.6.x and defaults to local root output.
 FIRSTDRAFT_CLI_DEFAULT_API_URL=https://firstdraft.com
 FIRSTDRAFT_STAGING_API_URL=https://staging.firstdraft.com
-# Shared Claude/Codex authoring Skill; exact source of published plugin 0.4.0 (API 0.4).
-FIRSTDRAFT_SKILLS_REVISION=5f544bff149173a249899d2b5dfd403057cc5a30
+# Shared Claude/Codex authoring Skill; exact source of published plugin 0.6.0 (API 0.6).
+FIRSTDRAFT_SKILLS_REVISION=a322d1f6e46ea69b2d38257d79d3a22071bb2e74
 FIRSTDRAFT_CLAUDE_SKILL_NAME=create-full-stack-app
 # Codex namespaces the canonical source checkout with its root plugin manifest.
 FIRSTDRAFT_CODEX_SKILL_NAME=firstdraft:create-full-stack-app
diff --git a/script/check-firstdraft-wrapper.mjs b/script/check-firstdraft-wrapper.mjs
index b1af61d..ea0da30 100644
--- a/script/check-firstdraft-wrapper.mjs
+++ b/script/check-firstdraft-wrapper.mjs
@@ -27,7 +27,7 @@ const fs = require("node:fs");
 const arguments_ = process.argv.slice(2);
 if (arguments_.length === 1 && arguments_[0] === "--version") {
   process.stdout.write("firstdraft " +
-    (process.env.FIRSTDRAFT_TEST_CLI_VERSION ?? "0.4.0") + "\\n");
+    (process.env.FIRSTDRAFT_TEST_CLI_VERSION ?? "0.6.0") + "\\n");
   if (process.env.FIRSTDRAFT_TEST_CLI_NOTICE) {
     process.stderr.write("A benign version notice.\\n");
   }
@@ -164,7 +164,7 @@ fs.writeFileSync(process.env.FIRSTDRAFT_TEST_OUTPUT, JSON.stringify({
       root: testRepository,
       stdio: "ignore",
     }),
-    /standalone First Draft CLI must be exactly 0\.4\.0/,
+    /standalone First Draft CLI must be exactly 0\.6\.0/,
   );
 } finally {
   fs.rmSync(temporaryRoot, {force: true, recursive: true});