Test a Computer Use API Controller Before Connecting a Model

Run 19 offline tests for computer-action validation, screenshot call IDs and form completion. Includes Python source and an unvalidated live adapter.

Build a Source-Checked Competitor Table: A Computer Use Template

Build a traceable competitor research CSV with field-level sources, plan conditions and explicit unknowns. Includes a five-product template and partial worked example.

Practice Landing-Page QA with Codex Computer Use

Use a downloadable local lab to check links, form submissions and narrow layouts. Includes flawed and corrected pages, a checklist and offline-tested source.

Make videos with Opus 5.5: prompts and MP4 export

Use Opus 5.5 video prompts for motion graphics, understand the rendering workflow, and try an editable Remotion starter with an MP4 export guide.

Translate image text without losing the layout

Localize a poster or product graphic with checked translations, an AI editing prompt, editable text layers, downloadable examples and export checks.

Claude Code returns 400 on a custom API? Check the Artifact schema

Identify the Claude Code Artifact input_schema regression on third-party endpoints, check the client version, and separate it from other HTTP 400 errors.

Gemini 2.5 Pro missing in AI Studio? Check the access change

Gemini 2.5 access is restricted to previous active users, not universally discontinued. Separate AI Studio visibility, API access and migration decisions.

Gemini 3.8 TTS reads your instructions aloud? Move delivery into metadata

Migrate to Gemini 3.8 Flash TTS with literal transcript text, speech_metadata and the Interactions API. Check audio output without mixing older request formats.

GPT-6 Sol and Luna vision fix: what to retest after September 25

OpenAI fixed an image-encoding bug in GPT-6 Sol and Luna. Use a controlled screenshot, OCR and chart checklist before trusting older vision results.

n8n credentials pass but the workflow returns 404: check the endpoint

A successful n8n credential test does not verify the generation route. Separate /models, Chat Completions and Responses with version-specific checks.