SessionStart injection (#234) and Cursor agent description field rendering. No new migrations.
Bug Fixes
Codex multi_agent_v2: fix SessionStart hook dispatch wording misleading sub-agents
packages/cli/src/templates/codex/hooks/session-start.py injects a “main session should dispatch trellis-implement” line when a task is in READY state. Under multi_agent_v2 Codex runs SessionStart for every spawned session, so the same line reached the freshly spawned trellis-implement sub-agent. The sub-agent followed it and dispatched another trellis-implement. The outer sub-agent stayed running while the inner one completed; wait_agent in the main session timed out.
Codex SessionStart stdin has no agent-identity field (openai/codex#16226), so the hook cannot filter sub-agent sessions directly. Patched at the prompt layer:
shared-hooks/session-start.py: same as above
The same dispatch wording lives in packages/cli/src/templates/shared-hooks/session-start.py (Claude Code / Cursor / Gemini CLI / Qoder / CodeBuddy / Factory Droid / Kiro). The recursion has not been reported on these platforms but the trigger condition is identical to Codex. Same fix as Codex.
Cursor: agent frontmatter description switched to single-line literal
packages/cli/src/templates/cursor/agents/trellis-{research,implement,check}.md previously used a YAML block scalar:
description: ... and drops block-scalar values, leaving the UI Description field blank. Switched to single-line literals; body text unchanged.