From a39d26a8e9e661ef460bb47e93d0f45778ba7512 Mon Sep 17 00:00:00 2001
From: Lakshman Patel <Lakshmanp230@gmail.com>
Date: Thu, 25 Jun 2026 10:52:15 +0530
Subject: [PATCH] fix(boundaries): untrack go.work, add cross-engine import
 guard

- Added go.work/go.work.sum to .gitignore (engines use local go.work only)
- Untracked committed go.work from git index
- Expanded boundary guard to check for forbidden cross-engine imports
- Updated README Ecosystem Boundaries to clarify local-only types
---
 .gitignore                            |  4 ++++
 README.md                             |  5 +++--
 go.work                               |  3 ---
 scripts/check-ecosystem-boundaries.sh | 25 ++++++++++++++++++++++---
 4 files changed, 29 insertions(+), 8 deletions(-)
 delete mode 100644 go.work
 mode change 100644 => 100755 scripts/check-ecosystem-boundaries.sh

diff --git a/.gitignore b/.gitignore
index 1b8f4b5..54eddbf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -28,5 +28,9 @@ __pycache__/
 .codegraph/
 coverage.out
 
+# Go workspace (local dev only — each developer creates their own)
+go.work
+go.work.sum
+
 # macOS
 .DS_Store
diff --git a/README.md b/README.md
index 3830c8f..06e5db3 100644
--- a/README.md
+++ b/README.md
@@ -46,9 +46,10 @@ sessions, across models, across projects — with no separate install or daemon
 
 Yaad is a Hawk support engine. Keep the dependency edge one-way:
 
-- depend on `hawk-core-contracts` when a stable cross-repo contract is needed
+- yaad uses local-only types (memory/retrieval types are yaad-scoped, not shared contracts)
 - do not import `hawk/internal/*`
-- do not import removed legacy path `hawk/shared/types`; use `hawk-core-contracts/types`
+- do not import removed legacy path `hawk/shared/types`
+- do not import other engines (`eyrie`, `tok`, `trace`, `sight`, `inspect`) — engines are peers, not dependencies
 
 ---
 
diff --git a/go.work b/go.work
deleted file mode 100644
index 4b21626..0000000
--- a/go.work
+++ /dev/null
@@ -1,3 +0,0 @@
-go 1.26.4
-
-use .
diff --git a/scripts/check-ecosystem-boundaries.sh b/scripts/check-ecosystem-boundaries.sh
old mode 100644
new mode 100755
index 57f81ba..e76d6dc
--- a/scripts/check-ecosystem-boundaries.sh
+++ b/scripts/check-ecosystem-boundaries.sh
@@ -4,10 +4,17 @@ set -euo pipefail
 ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 cd "$ROOT_DIR"
 
+FORBIDDEN_HAWK='github\.com/GrayCodeAI/hawk/(internal/|shared/types)'
+FORBIDDEN_ENGINES='github\.com/GrayCodeAI/(eyrie|tok|trace|sight|inspect)(/|")'
+
+exit_code=0
+
 if command -v rg >/dev/null 2>&1; then
-  violations="$(rg -n 'github\.com/GrayCodeAI/hawk/(internal/|shared/types)' --glob '*.go' . || true)"
+  violations="$(rg -n "$FORBIDDEN_HAWK" --glob '*.go' . || true)"
+  engine_violations="$(rg -n "$FORBIDDEN_ENGINES" --glob '*.go' . || true)"
 else
-  violations="$(grep -rn --include='*.go' -E 'github\.com/GrayCodeAI/hawk/(internal/|shared/types)' . || true)"
+  violations="$(grep -rn --include='*.go' -E "$FORBIDDEN_HAWK" . || true)"
+  engine_violations="$(grep -rn --include='*.go' -E "$FORBIDDEN_ENGINES" . || true)"
 fi
 
 if [[ -n "${violations}" ]]; then
@@ -15,7 +22,19 @@ if [[ -n "${violations}" ]]; then
   echo "${violations}"
   echo
   echo "support repos must use hawk-core-contracts or local contracts, not hawk/internal or removed hawk/shared/types"
-  exit 1
+  exit_code=1
+fi
+
+if [[ -n "${engine_violations}" ]]; then
+  echo "forbidden cross-engine imports found:"
+  echo "${engine_violations}"
+  echo
+  echo "support engines must not import other engines directly — they are peers, not dependencies"
+  exit_code=1
+fi
+
+if [[ $exit_code -ne 0 ]]; then
+  exit $exit_code
 fi
 
 echo "ecosystem boundary guard passed"