codex<\/code>\u30b3\u30de\u30f3\u30c9\u3067\u30bf\u30fc\u30df\u30ca\u30eb\u304b\u3089AI\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30a2\u30b7\u30b9\u30bf\u30f3\u30c8\u3092\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff01<\/p>\r\n<\/p>\r\n
<\/p>\n\n
VSCode\u3068\u306e\u9023\u643a\u624b\u9806<\/h2>\n1) VSCode\u306bCodex\u62e1\u5f35\u6a5f\u80fd\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/b>\r\n
[blogcard url=”https:\/\/marketplace.visualstudio.com\/items?itemName=openai.chatgpt”]<\/p>\r\n
VSCode\u3092\u958b\u304d\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u3067\u62e1\u5f35\u6a5f\u80fd\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3059\u3002<\/p>\r\n
1: \u5de6\u30b5\u30a4\u30c9\u30d0\u30fc\u306e\u62e1\u5f35\u6a5f\u80fd\u30a2\u30a4\u30b3\u30f3\u3092\u30af\u30ea\u30c3\u30af<\/p>\r\n
2: \u691c\u7d22\u30d0\u30fc\u306b\u300cCodex\u300d\u3068\u5165\u529b<\/p>\r\n
3: \u300cCodex \u2013 OpenAI’s coding agent\u300d\uff08\u767a\u884c\u5143\uff1aOpenAI\uff09\u3092\u9078\u629e<\/p>\r\n
4: \u300c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u300d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af<\/p>\r\n
\u30b5\u30a4\u30c9\u30d0\u30fc\u306b Codex \u30d1\u30cd\u30eb\u304c\u51fa\u308c\u3070OK\u3067\u3059\u3002<\/p>\r\n![\"\"](\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2025\/10\/codex-vscode-scaled.jpg\")
<\/b>\r\n<\/b>\r\n
<\/p>\r\n2) ChatGPT\u30a2\u30ab\u30a6\u30f3\u30c8\u3067\u30ed\u30b0\u30a4\u30f3<\/b>\r\n
\u62e1\u5f35\u6a5f\u80fd\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f8c\u3001<\/p>\r\n
1: \u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u30d0\u30fc\u306e\u53f3\u4e0a\u306b\u8868\u793a\u3055\u308c\u308bCodex\u30a2\u30a4\u30b3\u30f3<\/strong>\u3092\u30af\u30ea\u30c3\u30af<\/p>\r\n2: Codex\u30d1\u30cd\u30eb\u304c\u958b\u304d\u307e\u3059<\/p>\r\n
3: \u300cSign in with ChatGPT\u300d\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af<\/p>\r\n
4: \u30d6\u30e9\u30a6\u30b6\u304c\u8d77\u52d5\u3057\u3001ChatGPT\u3078\u306e\u30ed\u30b0\u30a4\u30f3\u753b\u9762\u304c\u8868\u793a\u3055\u308c\u307e\u3059<\/p>\r\n
\u30ed\u30b0\u30a4\u30f3\u5b8c\u4e86\u5f8c\u3001\u4ee5\u4e0b\u306e\u753b\u9762\u304c\u8868\u793a\u3055\u308c\u308c\u3070OK\u3067\u3059\u3002<\/p>\r\n
![\"\"](\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2025\/10\/codex-signin.png\")
<\/p>\r\n
\u3053\u308c\u3067VSCode\u304b\u3089Codex\u3092\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\uff01<\/p>\r\n<\/b>\r\n<\/b>\r\n3) VSCode\u62e1\u5f35\u6a5f\u80fd\u306e\u4f7f\u3044\u65b9<\/b>\r\n
\u3010\u52d5\u4f5c\u30e2\u30fc\u30c9\u306e\u9078\u629e\u3011<\/strong><\/p>\r\nCodex\u30d1\u30cd\u30eb\u306e\u4e0b\u90e8\u3067\u3001\u4ee5\u4e0b\u306e\u30e2\u30fc\u30c9\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\r\n
\u30fbChat<\/strong>\uff1a\u901a\u5e38\u306e\u30c1\u30e3\u30c3\u30c8\u30e2\u30fc\u30c9\uff08\u30b3\u30fc\u30c9\u306e\u8cea\u554f\u3084\u8b70\u8ad6\uff09<\/p>\r\n\u30fbAgent<\/strong>\uff1a\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u30e2\u30fc\u30c9\uff08\u30d5\u30a1\u30a4\u30eb\u8aad\u307f\u66f8\u304d\u3001\u30b3\u30de\u30f3\u30c9\u5b9f\u884c\u53ef\u80fd\u3001\u627f\u8a8d\u304c\u5fc5\u8981\uff09<\/p>\r\n\u30fbAgent (Full Access)<\/strong>\uff1a\u30d5\u30eb\u30a2\u30af\u30bb\u30b9\u30e2\u30fc\u30c9\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30af\u30bb\u30b9\u3092\u542b\u3080\u5168\u6a29\u9650\u3001\u627f\u8a8d\u4e0d\u8981\uff09<\/p>\r\n <\/p>\r\n
\u3010\u30e2\u30c7\u30eb\u306e\u9078\u629e\u3011<\/strong><\/p>\r\n\u30e2\u30c7\u30eb\u3068\u201creasoning effort\u201d\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u307e\u3059\u3002high \/ medium \/ low<\/code><\/strong> \u306e\u9806\u306b\u6df1\u304f\u8003\u3048\u308b\u4e00\u65b9\u3001\u5fdc\u7b54\u306f\u9045\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\r\n\u30fbgpt-5-codex [high \/ medium \/ low]<\/strong> \uff1aCodex \u7528\u306b\u6700\u9069\u5316\u3055\u308c\u305f GPT-5 \u6d3e\u751f\u30e2\u30c7\u30eb<\/p>\r\n\u30fbgpt-5 [high \/ medium \/ low]<\/strong> \uff1a\u6c4e\u7528\u306e GPT-5 \u30e2\u30c7\u30eb<\/p>\r\n <\/p>\r\n
\u3010\u74b0\u5883\u306e\u9078\u629e\u3011<\/strong><\/p>\r\n\u30fbWork locally<\/strong>\uff1a\u30ed\u30fc\u30ab\u30eb\u74b0\u5883\u3067\u5b9f\u884c<\/p>\r\n\u30fbRun in the cloud<\/strong>\uff1aOpenAI\u306e\u30b5\u30f3\u30c9\u30dc\u30c3\u30af\u30b9\u74b0\u5883\u3067\u5b9f\u884c<\/p>\r\n<\/p>\r\n
<\/p>\r\n
<\/p>\n\n
\u4fbf\u5229\u306a\u521d\u671f\u8a2d\u5b9a<\/h2>\n
\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3001\u521d\u671f\u8a2d\u5b9a\u3092\u884c\u3044\u307e\u3057\u305f\u3002<\/p>\r\n
[blogcard url=”https:\/\/zenn.dev\/dely_jp\/articles\/codex-cli-matome”]<\/p>\r\n<\/b>\r\nAGENTS.md \u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u30fb\u30b7\u30b9\u30c6\u30e0\u30d7\u30ed\u30f3\u30d7\u30c8\u3092\u8a2d\u5b9a\u3059\u308b<\/b>\r\n
\u30bf\u30fc\u30df\u30ca\u30eb\u3067\u4ee5\u4e0b\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\r\n
\r\n
cd ~\/.codex\r\ntouch AGENTS.md\r\ncode AGENTS.md\r\n<\/code><\/pre>\r\n<\/div>\r\nVS Code\u3067AGENTS.md\u304c\u958b\u304f\u306e\u3067\u3001\u597d\u304d\u306a\u3088\u3046\u306b\u7de8\u96c6\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\r\n
\r\n
- \u65e5\u672c\u8a9e\u3067\u56de\u7b54\u3057\u3066\u304f\u3060\u3055\u3044\u3002\r\n<\/code><\/pre>\r\n<\/div>\r\n <\/p>\r\nconfig.toml \u3067\u7d30\u304b\u306a\u8a2d\u5b9a\u3092\u884c\u3046<\/b>\r\n
Codex \u306f\u30db\u30fc\u30e0\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306e ~\/.codex<\/code> \u306b\u8a2d\u5b9a\u3092\u6301\u3061\u307e\u3059\u3002\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306f ~\/.codex\/config.toml<\/code>\u3067\u3059\u3002<\/p>\r\n\r\n
cd ~\/.codex\r\ntouch config.toml\r\ncode config.toml\r\n<\/code><\/pre>\r\n<\/div>\r\n <\/p>\r\n
\u30fb\u63a8\u8ad6\u30e2\u30fc\u30c9\u3092\u5e38\u306b\u201dhigh\u201d\u306b\u3059\u308b<\/p>\r\n
model_reasoning_effort<\/code> \u306f \"low\" | \"medium\" | \"high\"<\/code> \u306a\u3069\u3092\u6307\u5b9a\u3002\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u201dmedium\u201d\u3067\u3001\u96e3\u5ea6\u304c\u9ad8\u3044\u6642\u3060\u3051\u4e0a\u3052\u308b\u904b\u7528\u3082\u30a2\u30ea\u3002<\/p>\r\n\r\n
model_reasoning_effort = \"high\u201d\r\n<\/code><\/pre>\r\n<\/div>\r\n <\/p>\r\n
\u30fb\u30cd\u30a4\u30c6\u30a3\u30d6Web\u691c\u7d22\u30c4\u30fc\u30eb\u3092\u4f7f\u3046<\/p>\r\n
web_search = true<\/code> \u3092\u6709\u52b9\u306b\u3059\u308b\u3068\u3001Codex \u304c\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u691c\u7d22\u30c4\u30fc\u30eb\u3092\u547c\u3079\u307e\u3059\u3002<\/p>\r\n\r\n
[tools]\r\nweb_search = true\r\n<\/code><\/pre>\r\n<\/div>\r\n<\/p>\n\n
\u304a\u308f\u308a\u306b<\/h2>\n
Codex\u306f\u5358\u306a\u308b\u300c\u30c1\u30e3\u30c3\u30c8\u652f\u63f4\u300d\u3067\u306f\u306a\u304f\u3001\u5b9f\u969b\u306b\u624b\u3092\u52d5\u304b\u3059\u76f8\u68d2\u3067\u3059\u3002\u30ed\u30fc\u30ab\u30eb\u74b0\u5883\u3067\u5b89\u5168\u306b\u52d5\u4f5c\u3057\u3001\u3042\u306a\u305f\u306e\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u6df1\u304f\u7d71\u5408\u3055\u308c\u307e\u3059\u3002<\/p>\r\n
\u307e\u305a\u306fCLI\u3068VSCode\u62e1\u5f35\u6a5f\u80fd\u306e\u4e21\u65b9\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001AGENTS.md<\/code>\u3068config.toml<\/code>\u3067\u57fa\u672c\u8a2d\u5b9a\u3092\u6574\u3048\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u3060\u3051\u3067\u958b\u767a\u4f53\u9a13\u304c\u5927\u304d\u304f\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\r\n\u4eca\u56de\u3067Codex\u3092\u4f7f\u3046\u305f\u3081\u306e\u74b0\u5883\u69cb\u7bc9\u306f\u5b8c\u4e86\u3057\u305f\u306e\u3067\u3001\u6b21\u56de\u306f\u5b9f\u969b\u306bCodex\u3092\u5229\u7528\u3057\u3066\u30d0\u30a4\u30d6\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u3057\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\r\n
<\/p>\n\n
\u53c2\u8003<\/h2>\n
Codex CLI \u306e\u516c\u5f0f\u30ac\u30a4\u30c9<\/p>\r\n
[blogcard url=”https:\/\/developers.openai.com\/codex\/cli\/”]<\/p>\r\n
Codex IDE\uff08VSCode\u62e1\u5f35\uff09<\/p>\r\n
[blogcard url=”https:\/\/developers.openai.com\/codex\/ide\/”]<\/p>\r\n
Homebrew Formula<\/p>\r\n
[blogcard url=”https:\/\/formulae.brew.sh\/formula\/codex”]<\/p>\r\n
<\/p>\r\n
\u65e5\u672c\u8a9e\u307e\u3068\u3081\u8a18\u4e8b\uff1a\u300cCodex CLI\u3092\u4f7f\u3044\u3053\u306a\u3059\u305f\u3081\u306e\u6a5f\u80fd\u30fb\u8a2d\u5b9a\u307e\u3068\u3081<\/span>\u300d<\/p>\r\n[blogcard url=”https:\/\/zenn.dev\/dely_jp\/articles\/codex-cli-matome”]<\/p>","protected":false},"excerpt":{"rendered":"
OpenAI\u306eAI\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u300cCodex\u300d\u306e\u74b0\u5883\u69cb\u7bc9\u30ac\u30a4\u30c9\u3002Homebrew\u3067\u306eCLI\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3068\u3001VSCode\u62e1\u5f35\u6a5f\u80fd\u306e\u5c0e\u5165\u624b\u9806\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u306b\u52a0\u3048\u3066\u3001AGENTS.md\/config.t […]<\/p>\n","protected":false},"author":46,"featured_media":4088,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","swell_btn_cv_data":"","footnotes":"","_wp_rev_ctl_limit":""},"categories":[1249],"tags":[1087,96,376],"class_list":["post-7279","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-agent","tag-ai","tag-chatgpt"],"_links":{"self":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/7279","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/users\/46"}],"replies":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/comments?post=7279"}],"version-history":[{"count":0,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/7279\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media\/4088"}],"wp:attachment":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media?parent=7279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/categories?post=7279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/tags?post=7279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}