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Patch release with Oh My Pi platform support, cache-stable Pi runtime context, corrected ZCode paths, safer channel sessions, and task CLI cleanup. Run trellis update to refresh existing projects. New installs do not need --migrate; ZCode users on 0.6.3-0.6.5 should run trellis update --migrate once if .zcode/cli/agents/ exists.

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Enhancements

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Oh My Pi platform support

Trellis now supports Oh My Pi as a first-class platform. trellis init --omp writes:
  • .omp/agents/ for trellis-implement, trellis-check, and trellis-research
  • .omp/commands/ for Trellis workflow commands
  • .omp/skills/ for Trellis workflow and bundled skills
  • .omp/extensions/trellis/ for runtime context injection
OMP is registered in the generated cli_adapter.py and task_store.py, so OMP projects receive Trellis workflow routing and task JSONL context where sub-agents need it.

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Bug Fixes

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Pi runtime context

Pi extension output now keeps systemPrompt byte-stable across turns. Startup and task context are memoized, while mutable workflow, session, and task updates are delivered through persistent hidden messages. This preserves provider prefix-cache eligibility while still keeping Trellis context current.

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Oh My Pi runtime context

The OMP extension now injects session-start, task, and sub-agent context through the platform runtime instead of relying on stale session identity fallbacks. Generated OMP command files also include YAML frontmatter, and implement/research agents use the pi/task model hint.

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ZCode layout

ZCode-managed Trellis skills now live under .zcode/skills/, and ZCode sub-agents live under .zcode/agents/. The generated ZCode agent set now includes trellis-research, and .zcode is treated as sub-agent-capable when Trellis decides whether to seed implement.jsonl / check.jsonl.

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Channel sessions

Channel workers on Windows now resolve npm .cmd and node-script shims before spawning Codex workers. Channel stdout event writes are serialized so concurrent output cannot corrupt event records.

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Task creation

task.py create now rejects or normalizes explicit --slug values that already include an MM-DD- prefix, warns on blank descriptions, makes automatic session activation visible, and adds --no-start for backlog creation without moving the current session pointer.

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Codex inline mode

Codex inline mode no longer receives seed-only implement.jsonl / check.jsonl files just because .codex/ exists. Trellis only seeds those files for Codex when codex.dispatch_mode: sub-agent is explicitly configured.

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Session and hook templates

Session journals now use explicit fallback text instead of placeholders. Copilot instructions preserve repo-authored content while Trellis manages only its own guidance block, and shared hooks keep fail-open behavior without catching BaseException.

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Upgrade

npm install -g @mindfoldhq/trellis@latest
trellis update
  • Oh My Pi users: run trellis init --omp in projects that do not yet have .omp/; existing OMP dogfood projects should run trellis update.
  • ZCode users on 0.6.3-0.6.5: run trellis update --migrate once if .zcode/cli/agents/ exists. This moves legacy sub-agents to .zcode/agents/.
  • Pi users: run trellis update to receive the cache-stable extension runtime.
  • Codex inline users: run trellis update so new tasks stop receiving seed-only JSONL context files.