Files
deepseek-harness/packages/preset
Yichen Jiang 523d95a9cf docs(agent-presets): record that a preset file is never written back
The Loader writes a tree back to its source whenever it decides the
config changed, and a row disposing its own fiber is enough to decide
that. The mounted subtree overrides `write()` as a no-op for that
reason — a fact that lived only in a PR description, so nothing in the
repo said why the override exists or what removing it would cost.
2026-08-07 00:35:30 +08:00
..

preset/ — per-session agent composition

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An agent preset is a directory holding one agent.cordis.yml. Mounting it under an agent's scope context gives that session its own tools and prompt sections while every other live session keeps its own, so one process can run several differently composed agents at once.

Package Role ctx key
agent-presets/ Preset vocabulary, filesystem discovery over trusted and user-authored roots, and the guarded per-agent mount ctx.agentPresets
persona/ The agent persona as a composable row, so a preset can change identity and not only tools

The composition split this group assumes: registries and cross-session facilities are process singletons and stay in the host composition, while a preset carries what one agent contributes to them. A preset that names a row publishing a process-global service is rejected at mount rather than allowed to collide with the next session.

Design: the per-session agent-preset note.