chore: remove OpenSpec artifacts

docs/README.md

@@ -1,6 +1,6 @@
 # Codex Game Studio Docs
 
-This directory is intentionally small. Keep durable user-facing guidance here and keep game-studio operating surfaces in the tracked template files:
+This directory is intentionally small. Keep durable user-facing guidance here and keep game-studio operating surfaces in tracked template files:
 
 - `AGENTS.md`
 - `.codex/agents/*.toml`
@@ -14,21 +14,11 @@ This directory is intentionally small. Keep durable user-facing guidance here an
 | [User Guide](user-guide.md) | Installation, commands, role runs, workflow prompts, tasks, validation, and troubleshooting. |
 | [Examples](examples/README.md) | Scenario-based examples for common local workflows. |
 | [Product Boundary](architecture/product-boundary.md) | Implemented scope, non-goals, and boundaries. |
-
-## Repository support docs
-
-| Doc | Purpose |
-| --- | --- |
-| [Repo Rules](ai/repo-rules.md) | Repository rules mirrored for agent discovery. |
-| [Documentation Governance](standards/documentation-governance.md) | Rules for keeping docs concise and linked. |
-| [Default Principles](standards/default-principles.md) | General project documentation principles. |
-
-## Truthmark support
-
-Truthmark support files under `docs/truthmark/` are retained only where they match the Truthmark support surface. Do not add broad product-specific truth-doc sprawl here; use tracked template files, tests, and the README/user guide first.
+| [Documentation Governance](standards/documentation-governance.md) | Ownership and maintenance rules for framework documentation. |
 
 ## Update rules
 
+- Keep framework documentation separate from the design, architecture, production, and release records of an initialized game.
 - Do not add dated plans or one-off implementation notes under `docs/`.
 - Do not duplicate the agent, workflow, or skill catalogs in prose docs.
 - Keep the root README concise and link here only for durable guidance.