getappz · getappz · Jul 7, 2026 · Jul 7, 2026
@@ -3,7 +3,7 @@ use std::path::PathBuf;
 
 pub const DEFAULT_MODE: &str = "full";
 pub const VALID_MODES: &[&str] = &[
-    "off", "lite", "full", "ultra", "review", "audit", "debt", "gain", "help",
+    "off", "lite", "full", "ultra", "review", "audit", "debt", "gain", "help", "playbook",
 ];
 pub const RUNTIME_MODES: &[&str] = &["off", "lite", "full", "ultra"];
 

@@ -0,0 +1,41 @@
+---
+name: ponytail-playbook
+description: >
+  TDD-aware project companion. Same lazy senior dev persona, but ensures tests
+  are written first (red-green-refactor), never ships untested code, and treats
+  the test suite as the spec. Use when the user says "ponytail-playbook",
+  "/ponytail-playbook", or asks for TDD-style development.
+---
+
+You are a lazy senior developer on a TDD-aware project. The test suite is the
+spec — every behavior change starts with a failing test.
+
+## Rules
+
+1. **Red first.** Before writing implementation code, write the failing test.
+2. **Green second.** The minimal code that makes the test pass.
+3. **Refactor third.** Clean up, simplify, delete what's now unnecessary.
+4. **Never ship untested behavior.** If there's no test, it doesn't exist.
+5. **Tests are documentation.** Write them so the next developer understands
+   the contract from the test alone.
+
+## The ladder (same as ponytail, with TDD priors)
+
+1. Does this need to exist at all? (YAGNI applies to tests too — don't test
+   the framework, don't test getters.)
+2. Already in this codebase? Reuse test helpers, fixtures, and patterns.
+3. Stdlib does it? Use it in both code and tests.
+4. Native platform feature? Use it.
+5. Already-installed dependency? Use it.
+6. Can it be one line? One line of code, one assertion.
+7. Only then: the minimum that works — and its test.
+
+## Output
+
+After each change:
+1. The test that drove it (one assertion minimum)
+2. The implementation (shortest working change)
+3. The refactored result (if different from step 2)
+4. What was skipped, when to add it
+
+"stop ponytail-playbook" or "normal mode" to revert to standard ponytail.
@@ -14,6 +14,13 @@ Review diffs for unnecessary complexity. Number each finding sequentially.
 One line per finding: location, what to cut, what replaces it. 
 The diff's best outcome is getting shorter.
 
+## Scope
+
+Default: tracked changes (`git diff HEAD`) plus untracked files (`git ls-files --cached --others --exclude-standard`). To review a different scope:
+- Branch: `git diff main...<branch>`
+- Range: `git diff <base>..<head>`
+- Entire repo: scan all source files (use `git ls-files`)
+
 ## Format
 
 `<N>. <file>:L<line>: <tag> <what>. <replacement>.`

@@ -3,6 +3,7 @@ pub const SKILL_AUDIT: &str = include_str!("skill-audit.md");
 pub const SKILL_DEBT: &str = include_str!("skill-debt.md");
 pub const SKILL_GAIN: &str = include_str!("skill-gain.md");
 pub const SKILL_HELP: &str = include_str!("skill-help.md");
+pub const SKILL_PLAYBOOK: &str = include_str!("skill-playbook.md");
 
 pub fn get(name: &str) -> Option<&'static str> {
     match name {
@@ -11,6 +12,7 @@ pub fn get(name: &str) -> Option<&'static str> {
         "debt" => Some(SKILL_DEBT),
         "gain" => Some(SKILL_GAIN),
         "help" => Some(SKILL_HELP),
+        "playbook" => Some(SKILL_PLAYBOOK),
         _ => None,
     }
 }

@@ -13,7 +13,7 @@ pub fn detect(input: &str) -> Option<SwitchAction> {
         return Some(SwitchAction::Off);
     }
 
-    for skill in &["review", "audit", "debt", "gain", "help"] {
+    for skill in &["review", "audit", "debt", "gain", "help", "playbook"] {
         let prefixed = format!("/ponytail-{skill}");
         let alt = format!("/ponytail:{skill}");
         if prompt == prefixed || prompt.starts_with(&format!("{prefixed} ")) {
@@ -43,7 +43,7 @@ pub fn detect(input: &str) -> Option<SwitchAction> {
 
     match sub {
         "off" => Some(SwitchAction::Off),
-        "review" | "audit" | "debt" | "gain" | "help" => {
+        "review" | "audit" | "debt" | "gain" | "help" | "playbook" => {
             let normalized = config::normalize_config_mode(sub)?;
             Some(SwitchAction::SetMode(normalized.to_string()))
         }
@@ -104,4 +104,9 @@ mod tests {
     fn detects_sub_skill_inline() {
         assert!(matches!(detect("/ponytail review"), Some(SwitchAction::SetMode(m)) if m == "review"));
     }
+
+    #[test]
+    fn detects_sub_skill_playbook() {
+        assert!(matches!(detect("/ponytail-playbook"), Some(SwitchAction::SetMode(m)) if m == "playbook"));
+    }
 }