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Patch release adding the Snow CLI platform, sub-agent context injection caps across all three loaders, a per-turn injection skip keyword, durable Codex sub-agent model config, channel trusted context dirs for symlinked workspaces, and journal merge conflict relief.

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Enhancements

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Snow CLI platform

trellis init --snow configures Snow CLI as a class-1 platform: auto context inject via .snow/hooks/, project agent discovery under .snow/agents/, beforeSubAgentStart prompt enrichment, and multi-session isolation via Snow session identity env (#443).

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Sub-agent context injection caps

Sub-agent context injection now caps per-file (32 KiB), per-artifact (64 KiB), and total (128 KiB) payload size across the shared Python hook, the Pi extension, and the OpenCode plugin. Oversized files truncate with a notice; once the total cap is reached, remaining files degrade to index lines instead of being inlined. Configurable via context_injection in .trellis/config.yaml (0 disables a limit). Binary referenced files (detected via NUL bytes and strict UTF-8 validation) are never inlined — they emit a reference-only notice regardless of the configured limits (#441, #456, #471).

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no-trellis skip keyword

A prompt containing the configurable skip keyword (default no-trellis, word-boundary match) mutes the per-turn workflow-state injection for that turn. Configurable via prompt_injection.skip_keyword in .trellis/config.yaml; empty string disables the escape hatch (#427).

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Durable Codex sub-agent model config

User-set model / model_reasoning_effort in .codex/agents/trellis-*.toml now survive trellis update regeneration instead of being overwritten. Templates ship commented hints (gpt-5.6-terra / high) so the knob is discoverable. dispatch_mode stays auto by default — sub-agents inherit the main session’s model unless pinned in the agent toml (#459).

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Channel trusted context dirs

channel.trusted_context_dirs in .trellis/config.yaml allowlists external directories for context loading, plus narrow auto-trust when .trellis/tasks or .trellis/workspace themselves are symlinks — for projects that persist Trellis data outside a periodically-replaced project directory (#414).

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Script and task quality-of-life

  • add_session.py gains repeatable --change / --test / --next-step flags; sections with no content are omitted instead of rendering placeholder text (#394).
  • task.py list renders a task with a dangling parent reference flat instead of hiding it (#402).
  • task.py create --meta key=value (repeatable) and a new task.py set-meta subcommand expose the task.json meta field.

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Bug Fixes

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Kimi research persistence

trellis-research on Kimi Code now dispatches through the writable built-in coder sub-agent, so research findings persist under the task’s research/ directory instead of being lost (#457).

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Journal merge conflicts

.gitattributes ships journal-*.md merge=union, so parallel-worktree or concurrent trellis archive runs no longer conflict on append-only journal content. index.md conflicts are expected when parallel sessions ran — picking either side is safe since task state lives in task.json, not index.md. add_session.py warns once when run inside a linked worktree with session_auto_commit enabled (#415).

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Upgrade

No --migrate required.