# deep-research

> Claude/Codex skill by [@davidondrej](https://omgskills.com/library/davidondrej/index.md) · 4.2k stars · Updated 2026-10-28

Run deep research through DeepAPI and save a report with sources. Use when asked for deep research, DeepAPI research, or Perplexity deep research.

## Install

```sh
git clone https://github.com/davidondrej/skills /tmp/skills && ln -s /tmp/skills/skills/research-and-web/deep-research ~/.claude/skills/deep-research
```

## From README

Deep Research Use DeepAPI (POST /v1/research/deep) for all deep research. API key Read APIKEY from the environment. If the key is missing, stop and ask the user. Never print or log it. Get a key at deepapi.co. Build the prompt Follow the research-prompt skill. Write one self-contained paragraph: Lead with the main question and the decision it informs. Include all context and 3-6 numbered sub-questions. Keep one mission per prompt. State what to include or avoid. Prefer primary sources; separate fact from inference. Field limits: query ≤ 4000 characters (the prompt), optional context ≤ 8000, optional instructions ≤ 2000. Do not send model or provider; the API rejects them. Run it One call returns a cited answer, targeting 700-1,120 words. The server allows up to 5 minutes. Minimum maxCostUsd is "0.35". Default to "0.70"; ask the user before raising it. Save the report Save a Markdown report with citation URLs beneath it. Only report costs if the user asks.

## Links

- HTML page: https://omgskills.com/library/davidondrej/skills/deep-research/
- GitHub: https://github.com/davidondrej/skills
- Author: [@davidondrej](https://omgskills.com/library/davidondrej/index.md)

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