# Executable Markdown **Domain:** Document Systems / Workflow Languages **Doc Type:** Canonical Concept Node **Maturity:** Developing **Related:** [[wiki/Markdown|Markdown]], [[wiki/Domain-Specific Language|Domain-Specific Language]], [[wiki/Permissioned Capability|Permissioned Capability]] --- ## Definition **Executable Markdown is a readable Markdown document containing recognized, validated instructions that a controlled runtime can interpret.** The document remains useful as prose while carrying a portable description of transformations, targets, or workflows. ## XDO Context XDO experimented with inline `[do](...)` actions and `## Do! ... done!` sections. DO instructions were processed before ordinary Markdown rendering, allowing one document to contain prose, structured data, templates, commands, and named outputs. ## Key Insight **The document carries intention; the replaceable runtime supplies execution.** ## See Also [[projects/XDO - Executable Markdown and Portable Workflows|XDO]], [[wiki/Intermediate Representation|Intermediate Representation]], [[wiki/Named Target|Named Target]], [[wiki/Technical Terms|Technical Terms]]