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geml

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Address a document by its BLOCKS instead of reading it whole. Use for any long Markdown or documentation file — README, spec, guide, design doc, changelog — when the job is to find where something is documented, read one section, or change one section: `geml list`, `geml find` and `geml get` read Markdown directly and hand back the one block that matters, leaving the file the Markdown it already was. Skip it when the whole file is short enough to read anyway. Use it also to read, author, edit or validate GEML itself — .geml files, .gemlhistory sidecars, typed blocks, === fences, geml-chart, converting Markdown to GEML — where the output must parse cleanly (zero error diagnostics) against the reference parser.

integrations/codex-plugin/skills/geml/SKILL.md

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Nov 5, 2026
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MIT

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# Reading and editing documents blockwise

Two jobs. The first is the common one, and it needs none of GEML's syntax.

## A document that is NOT GEML — use this as a read layer

`geml list`, `geml find` and `geml get` read **Markdown** directly. Use them to
locate and read one block of a long document. Nothing is converted, nothing is
written, and the file stays exactly the Markdown it already was.

**Only when you would otherwise read the whole file to change part of it.** If
the file is short, or you already know the exact string to replace, open it the
ordinary way — the round trip costs more than it saves. What is saved is only
ever the part you did not have to read: on this project's own docs a `list` map