feat(devcontainer): add yq and additional CLI tools, improve compatibility symlinks

.devcontainer/devcontainer.json

@@ -134,6 +134,9 @@
             "version": "latest",
             "profile": "minimal"
         },
+        "ghcr.io/devcontainer-community/devcontainer-features/yq:1": {
+            "version": "latest"
+        },
         "ghcr.io/devcontainers-extra/features/apt-packages:1": {
             "packages": [
                 "bat",
@@ -142,14 +145,21 @@
                 "ffmpeg",
                 "fzf",
                 "git-delta",
-                "hyperfine",
                 "httpie",
+                "hyperfine",
                 "ipython3",
+                "jo",
                 "jq",
-                "libturbojpeg0",
                 "libpcap-dev",
+                "libturbojpeg0",
+                "miller",
+                "moreutils",
                 "ripgrep",
-                "yq"
+                "shellcheck",
+                "shfmt",
+                "sqlite3",
+                "tree",
+                "yamllint"
             ]
         }
     }

AGENTS.md

@@ -785,9 +785,11 @@ When debugging period calculation issues:
 
 **Agent Productivity CLI Tools (DevContainer):**
 
--   Expected available tools: `rg`, `fd`, `fzf`, `jq`, `yq`, `bat`, `eza`, `delta`, `hyperfine`, `ipython`, `http`
--   Debian package notes: `fd-find` provides `fdfind`, `bat` may be `batcat`
--   Setup creates compatibility symlinks for `fd` and `bat` in `scripts/setup/setup`
+The devcontainer provides common agent-facing CLI tools: `bat`, `delta`/`git-delta`, `eza`, `fd`/`fdfind`, `fzf`, `http`/`httpie`, `hyperfine`, `ipython`, `jq`, `jo`, `mlr`/`miller`, `rg`/`ripgrep`, `shellcheck`, `shfmt`, `sponge`, `sqlite3`, `tree`, `yq`, and `yamllint`. Prefer these explicit container tools over assuming a VS Code extension exposes an equivalent CLI on `PATH`.
+
+**CLI Compatibility Notes:**
+
+Some commands are available via compatibility aliases because Debian package names differ from what agents often expect. Prefer these stable spellings: `bat`, `fd`, `git-delta`, `http`, `ipython`, `miller`, and `ripgrep`. `yq` is installed as the Mike Farah variant, so standard `yq eval`/`yq e` syntax is expected. Setup creates compatibility symlinks automatically in `scripts/setup/setup`.
 
 **When generating shell commands:**
 

scripts/setup/setup

@@ -50,15 +50,27 @@ fi
 # Setup Debian compatibility symlinks for common CLI tool names.
 mkdir -p "$HOME/.local/bin"
 
-# Debian package fd-find provides `fdfind`, but most workflows expect `fd`.
-if command -v fdfind >/dev/null 2>&1; then
-    ln -sf "$(command -v fdfind)" "$HOME/.local/bin/fd"
-fi
+# Generalized function to create command aliases for Debian compatibility
+ensure_command_alias() {
+    local expected_cmd="$1"
+    local actual_cmd="$2"
 
-# Debian package bat provides `batcat`, but most workflows expect `bat`.
-if command -v batcat >/dev/null 2>&1; then
-    ln -sf "$(command -v batcat)" "$HOME/.local/bin/bat"
-fi
+    if command -v "$actual_cmd" >/dev/null 2>&1; then
+        actual_path="$(command -v "$actual_cmd")"
+        ln -sf "$actual_path" "$HOME/.local/bin/$expected_cmd" 2>/dev/null || true
+    fi
+}
+
+# Create command aliases for Debian compatibility
+# Debian package names differ from expected spellings
+ensure_command_alias "bat" "batcat"
+ensure_command_alias "fd" "fdfind"
+ensure_command_alias "fd-find" "fdfind"
+ensure_command_alias "delta" "git-delta"
+ensure_command_alias "http" "httpie"
+ensure_command_alias "ipython" "ipython3"
+ensure_command_alias "mlr" "miller"
+ensure_command_alias "rg" "ripgrep"
 
 # Ensure user-local bin directory is available in interactive shells.
 if ! grep -q '\$HOME/.local/bin' "$HOME/.zshrc" 2>/dev/null; then