Run wrappers from repo root; restore rbs:validate in build

Address review: wrappers cd to the repo root; .agents/bin/build runs
bundle exec rake rbs:validate (validate=bin/ci-local remains the full gate).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: justin808

.agents/bin/README.md

@@ -11,7 +11,7 @@ means that capability is n/a here.
 | `validate` | Pre-push gate (`--changed`/`--all`/`--fast`) | `bin/ci-local` |
 | `test` | Run tests | `(cd react_on_rails && bundle exec rake run_rspec)` + `pnpm run test` |
 | `lint` | Lint / format (`rake autofix` to fix) | `(cd react_on_rails && bundle exec rake lint)` |
-| `build` | Build / type-check | `pnpm run build` + `pnpm run type-check` |
+| `build` | Build / type-check | `pnpm run build` + `pnpm run type-check` + `rake rbs:validate` |
 | `docs` | Docs checks | `script/check-docs-sidebar` + `bin/check-links` |
 | `ci-detect` | CI change detector | `script/ci-changes-detector origin/main` |
 

.agents/bin/build

@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 # Build and type-check.
 set -euo pipefail
+cd "$(CDPATH= cd -- "$(dirname -- "$0")/../.." && pwd)"
 pnpm run build
 pnpm run type-check
+( cd react_on_rails && bundle exec rake rbs:validate )

.agents/bin/ci-detect

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
 # CI change detector (inspect suite routing). Optional base ref (default origin/main).
 set -euo pipefail
+cd "$(CDPATH= cd -- "$(dirname -- "$0")/../.." && pwd)"
 exec script/ci-changes-detector "${1:-origin/main}"

.agents/bin/docs

@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 # Docs checks (sidebar coverage + markdown links).
 set -euo pipefail
+cd "$(CDPATH= cd -- "$(dirname -- "$0")/../.." && pwd)"
 script/check-docs-sidebar
 bin/check-links

.agents/bin/lint

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
 # Lint / format check. Fix with: (cd react_on_rails && bundle exec rake autofix)
 set -euo pipefail
+cd "$(CDPATH= cd -- "$(dirname -- "$0")/../.." && pwd)"
 ( cd react_on_rails && bundle exec rake lint )

.agents/bin/setup

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
 # Install dependencies.
 set -euo pipefail
+cd "$(CDPATH= cd -- "$(dirname -- "$0")/../.." && pwd)"
 exec script/bootstrap

.agents/bin/test

@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 # Run tests (Ruby gem specs + JS).
 set -euo pipefail
+cd "$(CDPATH= cd -- "$(dirname -- "$0")/../.." && pwd)"
 ( cd react_on_rails && bundle exec rake run_rspec )
 pnpm run test

.agents/bin/validate

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
 # Pre-push gate. Flags pass through (--changed narrow, --all broad, --fast quick).
 set -euo pipefail
+cd "$(CDPATH= cd -- "$(dirname -- "$0")/../.." && pwd)"
 exec bin/ci-local "$@"