Codex Deep Research for Cross-Source Verification

Split a research question into focused queries, compare source quality, and prepare a cited Markdown report with gaps and disagreements.

Install in Codex

Codex with a zspark or target checkout and public or user-provided research material.

Copy the entire pinned `.codex/skills/deep-research/` directory to `.agents/skills/deep-research/` in the target checkout.
Open Codex in that checkout and invoke `$deep-research` with the example task and desired output.

Give `$deep-research` three fictional offline note-tool specs. Compare export formats and sync limits and identify the source behind each finding.

The report records sources and conflicts. Every reference resolves to supplied evidence or has a visible gap.

Record dates, scope, and definitions, check whether claims are comparable, and explain any unresolved difference.