MiniMax H3 Run Manager

Run Manager is the "where did that production go?" node. Every Contex Loop run lives in a folder under ComfyUI/output/h3_chains/<run_name>/ - checkpoints, segment MP4s, audio sidecars, recovery metadata - but a run folder on disk is not the same thing as a run you can open. This node browses those projects, restores a saved run's Plan and its loader-backed reference assets, and lets you promote one archived source track into the Plan's recoverable Source Timeline. In other words: it turns a pile of checkpoint files back into an editable, resumable production.

If you've ever had to rebuild a workflow from metadata after the originals rotted on disk, you know exactly why this exists. Video reference files get moved, renamed, or lost between sessions; a production you set aside in March shouldn't be unrecoverable in April.

What it does

Connect your active plan - the Run Manager can replace that Plan's prompts and settings with a saved run's, after confirmation, and it passes the current Plan through at execution time. The node also registers loader outputs: connect a loader output to one of the asset_0 through asset_11 sockets and it records the source file for the run, reading the graph link without decoding or retaining the media. Three toggles control what gets archived as content-addressed fallback copies in the run folder:

• archive_images (default on) - fallback copies of connected picture assets.
• archive_audio (default on) - fallback copies of audio references and source tracks.
• archive_video (default off) - fallback video copies, off by default because video assets can balloon a run archive. Turn it on only if you genuinely can't count on the originals.

The tagged_references input takes the final Tagged reference line (from the last Tagged Picture/Video/Audio Ref, or from Semantic Anchor Bundle) so the manager can discover and archive any semantic image loaders the bundle carries.

The Source Timeline promotion is the clever recovery feature: if exactly one loader asset is assigned the Source track role, it automatically becomes the recoverable Source Timeline - unless you pass an explicit source_timeline wire, which takes priority. Outputs: plan (the connected Plan plus JSON-safe Source Timeline recovery metadata) and source_timeline (a path-backed timeline for Loop Start, Tagged Motion, preview, and final assembly). A restored run is not just viewable - it's executable again, because the references come back with it.

Install

From ComfyUI-MiniMaxH3-Contex-Loop. ComfyUI Manager → search the pack, or:

cd ComfyUI/custom_nodes
git clone https://github.com/ethanfel/ComfyUI-MiniMaxH3-Contex-Loop.git

Restart. No pip dependencies. Needs a current ComfyUI with native Add Guide for MiniMax H3 for the generation side; the H3 weights aren't bundled and are license-locked out of the US/EU/UK/South Korea.

Gotchas

The archive toggles are the trap. archive_video being off is a deliberate default, but if your references are video and you can't guarantee the originals stay put, a future restore will find archived pictures and audio but not video - and the failure will happen at the most inconvenient time. Also, restore is confirmation-gated and replaces the current Plan's prompts and settings, so treat it as the destructive-ish action it is. The manager reading "the graph link without decoding or retaining the media" also means it trusts your wiring: a reference you never connected to an asset socket isn't in the archive, no matter how sure you were that it was.