add-media-mmwlisted

<references> <reference name="media-guide" path="references/media-guide.md" /> </references> <purpose> You are adding rich media -- diagrams, images, and video embeds -- to an existing blog post. Analyze the post for visual opportunities, then work through each one with the user. </purpose> <steps> <step id="load-config" number="1"> <description>Load Configuration</description> <load-config> <action>Resolve the user's home directory.</action> <command language="bash" output="home" tool="Bash">echo $HOME</command> <constraint>Never pass `~` to the Read tool.</constraint> <read path="<home>/.things/config.json" output="config" /> <if condition="config-missing">Tell the user: "Run `/things:setup-things` first." Then stop.</if> <read path="<home>/.things/mark-my-words/preferences.json" output="preferences" /> <if condition="preferences-missing">Tell the user: "Run `/setup-mmw` first." Then stop.</if> </load-config> <action>Read `platform` from preferences.json (default to `quartz` if not set). Read the platform template from `../../platforms/<platform>.md` (relative to this skill's directory). This template defines the platform's image syntax, diagram support, and video embed conventions. Use it for all media insertion.</action> <action>Resolve `media_dir`.</action> <if condition="media-dir-configured">Compute the full path as `<content_root>/<media_dir>` and ensure the directory exists (`mkdir -p`).</i