diff --git a/AGENTS.md b/AGENTS.md
index 50639145d..ea2efe703 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -366,7 +366,7 @@ DEBUG_COLORS=0 DEBUG=* ./awmg --config config.toml
 ## Environment Variables
 
 - `GITHUB_PERSONAL_ACCESS_TOKEN` - GitHub auth
-- `DOCKER_API_VERSION` - 1.43 (arm64) or 1.44 (amd64)
+- `DOCKER_API_VERSION` - Set by querying Docker daemon's current API version; falls back to `1.44` for all architectures if detection fails
 - `DEBUG` - Enable debug logging (e.g., `DEBUG=*`, `DEBUG=server:*,launcher:*`)
 - `DEBUG_COLORS` - Control colored output (0 to disable, auto-disabled when piping)
 - `MCP_GATEWAY_LOG_DIR` - Log file directory (sets default for `--log-dir` flag, default: `/tmp/gh-aw/mcp-logs`)
diff --git a/README.md b/README.md
index c50e6cf92..4f1d11660 100644
--- a/README.md
+++ b/README.md
@@ -195,6 +195,8 @@ For the complete JSON configuration specification with all validation rules, see
   - Variable expansion with `${VAR_NAME}` fails fast on undefined variables
   - All validation errors include JSONPath and helpful suggestions
   - **Mount specifications** must follow `"source:dest:mode"` format
+    - `source` must be an absolute path (e.g., `/host/data`)
+    - `dest` must be an absolute path (e.g., `/app/data`)
     - `mode` must be either `"ro"` or `"rw"`
     - Both source and destination paths are required (cannot be empty)