stack-build and stack-close carry disable-model-invocation, so each phase change is the operator's slash command; no skill offers a mid-session /model or /effort switch. Mode rules and the phase table move to instructions/dev/stack-mode.md, publish and CI waiting to instructions/dev/publish-and-ci.md, the ready definition to issue-tracking.md. Files changed: - AGENTS.md - CHANGES.md - DEVELOPMENT.md - README.md - VERSION - docs/model-and-effort-selection.md - instructions/CONTRACT.md - instructions/dev/commonplace-kb.md - instructions/dev/dev-setup.md - instructions/dev/doc-pull-through.md - instructions/dev/issue-tracking.md - instructions/dev/publish-and-ci.md - instructions/dev/stack-build/SKILL.md - instructions/dev/stack-close/SKILL.md - instructions/dev/stack-dev/SKILL.md - instructions/dev/stack-mode.md - instructions/dev/testing-conventions.md - instructions/dev/version-parts.md - tools/chemenu/commands/git_publish.py - tools/chemenu/tests/test_git_publish.py - tools/chemenu/tests/test_instructions_cmd.py Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SnAJ7Z3CpVD3PRbN73QtU2