Plannotator said on X that it now supports the Codex app and CLI. The company listed three supported skills: plannotator-annotate, plannotator-last, and plannotator-review.
Plannotator announced on X that it now supports OpenAI’s Codex app and CLI, adding new integration points for users who work heavily in planning and code review.
The post came from Plannotator’s account and was directed at @OpenAIDevs. It said the new support adds “a lot of utility” for users who spend more time planning, even though a future “superapp” is expected to include similar features.
This matters because it shows another tool connecting directly into Codex, OpenAI’s coding app and command-line tool. A CLI, or command-line interface, is the text-based way many developers run tools from a terminal.
For non-specialists, the key point is that more AI coding tools are being linked together so people can plan, annotate, and review work in one flow instead of switching between separate apps.
If you build self-hosted agent workflows, look at where planning and review sit in your stack, not just generation. Plannotator’s new Codex support is a reminder to keep a separate annotation layer for agent output so humans can review plans before code lands.
If your agents already emit markdown, JSON, or task notes, wire those into a review tool that can annotate the last message and support file-level comments. Also make code review a distinct step in the pipeline, rather than letting the agent move straight from plan to execution.
Plannotator describes itself as a tool for annotating agent plans and reviewing code visually. In the same X post, the company said the demo “is the hook” and added that a pet tater was part of the presentation, but the main point was the new Codex support.
The company said the integration works for three skills: plannotator-annotate, which annotates any file; plannotator-last, which annotates the last agent message; and plannotator-review, which provides integrated code review.
Codex is OpenAI’s coding tool, and the announcement covers both the app and the command-line interface, or CLI. A CLI is the text-based interface developers use in a terminal.
Plannotator’s message suggests the integration is aimed at people who want to add visual planning and review steps around Codex workflows. That includes users who want to mark up files, review an agent’s last response, or run code review inside the same planning tool.
The post was published on May 2, 2026 and was viewed more than 2,500 times at the time shown on X. No pricing, availability limits, or broader product roadmap details were included in the post.
Plannotator’s account also says the product helps teams share plans, iterate, and send feedback to an agent with one click. The new Codex app and CLI support appears to extend that workflow into OpenAI’s coding environment.
