Agent skill

Codex Slides Verification

by nexu-io in nexu-io/codex-slides

Verify that Codex Slides changes are durably reflected in project state and visibly reflected in the exact Codex Browser slide, panel, version, checkpoint, or presentation surface.

MITAuto-check passedDocuments & Office

Install Codex Slides Verification

skills CLI
$ npx skills add nexu-io/codex-slides --skill codex-slides-verification -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install nexu-io/codex-slides codex-slides-verification --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/nexu-io/codex-slides.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/codex-slides-verification .claude/skills/codex-slides-verification && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
codex-slides-verification
GitHub stars
928
Token cost
~467 tokens
SKILL.md length
218 words
Files
2
Skills in repo
7
Repo updated
First seen
Licence
MIT

At a glance

Verify that Codex Slides changes are durably reflected in project state and visibly reflected in the exact Codex Browser slide, panel, version, checkpoint, or presentation surface.

  • Works in 2 steps: Read canonical project state with… → Follow the returned browserHandoff and…
  • Tasks that involve Slides and decks
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Tasks that involve PowerPoint presentations

What it does

Codex Slides Verification is an agent skill from nexu-io/codex-slides. Verify that Codex Slides changes are durably reflected in project state and visibly reflected in the exact Codex Browser slide, panel, version, checkpoint, or presentation surface. Use after creation, rendering, editing, restyling, mark edits, speaker-note changes, version restores, or export.

Its SKILL.md is about 470 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).

It sits in Documents & Office, covering Slides and decks and PowerPoint presentations. It works with Microsoft PowerPoint. The repository describes itself as: 🎨 Open-source AI slide studio inside Codex: image-native decks, every slide a full visual canvas. ⚡ 10+ high-quality slides in ~4–5 minutes — Fast mode renders every page in… The licence is MIT.

When your agent uses it

  • Tasks that involve Slides and decks
  • Tasks that involve PowerPoint presentations

Example prompts

  • “/codex-slides-verification”

Workflow steps

2 steps, taken from the first numbered list in SKILL.md.

  1. Read canonical project state with get_project, and read a named durable job
  2. Follow the returned browserHandoff and inspect the exact visible result in

What it can do on your machine

Read from SKILL.md and the folder at commit dbc2a59. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Codex Slides Verification loads about 467 tokens when it runs. Until then it costs about 80 tokens; SKILL.md has 218 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~80
When it runs · the whole SKILL.md, loaded when a task matches
~467

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from nexu-io/codex-slides at commit dbc2a59, republished under its MIT licence (© nexu-io). 218 words, ~467 tokens.

Download SKILL.mdSave it as .claude/skills/codex-slides-verification/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
codex-slides-verification
description
Verify that Codex Slides changes are durably reflected in project state and visibly reflected in the exact Codex Browser slide, panel, version, checkpoint, or presentation surface. Use after creation, rendering, editing, restyling, mark edits, speaker-note changes, version restores, or export.

Codex Slides Verification

Use two signals before reporting a presentation task complete:

  1. Read canonical project state with get_project, and read a named durable job with get_project_run or wait_project_run when a runId was returned.
  2. Follow the returned browserHandoff and inspect the exact visible result in the Codex in-editor Browser.

Verification sequence

  1. Confirm the project id rather than guessing from a similar title.
  2. For a durable run, require a terminal complete status. Treat error and cancelled as incomplete; a timed-out wait leaves the run active.
  3. Confirm the expected page count, changed slide indexes, rendered images, transitions, speaker notes, current workflow stage, and current deck version.
  4. Open the exact handoff returned by the mutation. Preserve its slide, panel, version, mode, conversation, checkpoint, and run query parameters.
  5. In Browser, confirm the intended slide or panel is focused and the visible result matches the request. Do not treat a JSON response alone as visual QA.
  6. Export only after the current or explicitly selected version passes review.

If the in-editor Browser is unavailable, use the project state and persisted slide-image endpoints as structural evidence, return the exact handoff URL, and state that visible Browser verification remains outstanding.

For cross-surface changes, also verify that refreshing or reopening the same project preserves the run result and deep-link focus.

© nexu-io, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in skills/codex-slides-verification of nexu-io/codex-slides.

  • SKILL.md
  • agents/openai.yaml

Open the folder on GitHubat commit dbc2a59

Compare with similar skills

Codex Slides Verification next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Codex Slides Verification compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Codex Slides Verification this skillnexu-io/codex-slides928—~467Automated safety check: PassMIT
Image To Editable Pptningzimu/image-to-editable-ppt-skill2.8k—~4.3kAutomated safety check: PassMIT
Slidesfcakyon/claude-codex-settings1.2k1 repos~1.1kAutomated safety check: PassMIT
Ppt Image FirstNyxTides/ppt-image-first1.2k—~1.6kAutomated safety check: PassApache-2.0
Gpt Image2 PptJuneYaooo/gpt-image2-ppt-skills1.3k—~8.9kAutomated safety check: NotesApache-2.0
Paper Deckzsyggg/paper-craft-skills1.3k—~1.4kAutomated safety check: PassNone

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Questions about Codex Slides Verification

What does Codex Slides Verification do?

Verify that Codex Slides changes are durably reflected in project state and visibly reflected in the exact Codex Browser slide, panel, version, checkpoint, or presentation surface. Codex Slides Verification is an agent skill from nexu-io/codex-slides. Verify that Codex Slides changes are durably reflected in project state and visibly reflected in the exact Codex Browser slide, panel, version, checkpoint, or presentation surface.

When should I use Codex Slides Verification?

Codex Slides Verification fits situations like: tasks that involve Slides and decks; tasks that involve PowerPoint presentations.

How do I install Codex Slides Verification in Claude Code?

Run `npx skills add nexu-io/codex-slides --skill codex-slides-verification -a claude-code`. Or copy the skill folder (skills/codex-slides-verification in nexu-io/codex-slides) into .claude/skills/codex-slides-verification in your project. Claude Code loads it when a task matches its description.

How do I install Codex Slides Verification in Codex?

Run `npx skills add nexu-io/codex-slides --skill codex-slides-verification -a codex`. Or copy the skill folder (skills/codex-slides-verification in nexu-io/codex-slides) into .agents/skills/codex-slides-verification in your project. Codex loads it when a task matches its description.

Can I use Codex Slides Verification in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nexu-io/codex-slides --skill codex-slides-verification -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/codex-slides-verification, .gemini/skills/codex-slides-verification, .github/skills/codex-slides-verification and .opencode/skills/codex-slides-verification in your project.

What does Codex Slides Verification need to run?

SKILL.md names no scripts, command-line tools or credentials: Codex Slides Verification is instructions for the agent only.

Does Codex Slides Verification access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Codex Slides Verification safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Codex Slides Verification use?

Codex Slides Verification is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Codex Slides Verification use?

About 467 tokens (SKILL.md is roughly 1.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Codex Slides Verification?

Skills that share tags, products or a category with Codex Slides Verification: Image To Editable Ppt (ningzimu/image-to-editable-ppt-skill, 2.8k stars), Slides (fcakyon/claude-codex-settings, 1.2k stars), Ppt Image First (NyxTides/ppt-image-first, 1.2k stars) and Gpt Image2 Ppt (JuneYaooo/gpt-image2-ppt-skills, 1.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Codex Slides Verification?

nexu-io (a GitHub organization) maintains it in nexu-io/codex-slides, which has 928 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on July 21, 2026.

Source: nexu-io/codex-slides on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.