feat(pi): add Pi Coding Agent as a generation target

README.md

@@ -89,6 +89,7 @@ See [Quick Start guide](https://dyoshikawa.github.io/rulesync/getting-started/qu
 | Windsurf            | windsurf     |  ✅   |   ✅   |          |          |           | ✅ 🌏  |       |             |
 | Warp                | warp         |  ✅   |        |          |          |           |        |       |             |
 | Replit              | replit       |  ✅   |        |          |          |           |   ✅   |       |             |
+| Pi Coding Agent     | pi           | ✅ 🌏 |        |          |  ✅ 🌏   |           | ✅ 🌏  |       |             |
 | Zed                 | zed          |       |   ✅   |          |          |           |        |       |             |
 
 - ✅: Supports project mode

docs/reference/file-formats.md

@@ -187,6 +187,8 @@ antigravity: # antigravity specific parameters
   turbo: true # (Optional, default: true) Append // turbo for auto-execution
 takt: # takt specific parameters (optional; emitted under .takt/facets/instructions/)
   name: "renamed-stem" # (optional) override the emitted filename stem (no path separators or "..")
+pi: # pi coding agent specific parameters (optional)
+  argument-hint: "[message]" # Hint shown in Pi's command palette
 ---
 
 target_pr = $ARGUMENTS

docs/reference/supported-tools.md

@@ -28,6 +28,7 @@ Rulesync supports both **generation** and **import** for All of the major AI cod
 | Windsurf            | windsurf     |  ✅   |   ✅   |          |          |           | ✅ 🌏  |       |             |
 | Warp                | warp         |  ✅   |        |          |          |           |        |       |             |
 | Replit              | replit       |  ✅   |        |          |          |           |   ✅   |       |             |
+| Pi Coding Agent     | pi           | ✅ 🌏 |        |          |  ✅ 🌏   |           | ✅ 🌏  |       |             |
 | Zed                 | zed          |       |   ✅   |          |          |           |        |       |             |
 
 - ✅: Supports project mode

skills/rulesync/file-formats.md

@@ -187,6 +187,8 @@ antigravity: # antigravity specific parameters
   turbo: true # (Optional, default: true) Append // turbo for auto-execution
 takt: # takt specific parameters (optional; emitted under .takt/facets/instructions/)
   name: "renamed-stem" # (optional) override the emitted filename stem (no path separators or "..")
+pi: # pi coding agent specific parameters (optional)
+  argument-hint: "[message]" # Hint shown in Pi's command palette
 ---
 
 target_pr = $ARGUMENTS

skills/rulesync/supported-tools.md

@@ -28,6 +28,7 @@ Rulesync supports both **generation** and **import** for All of the major AI cod
 | Windsurf            | windsurf     |  ✅   |   ✅   |          |          |           | ✅ 🌏  |       |             |
 | Warp                | warp         |  ✅   |        |          |          |           |        |       |             |
 | Replit              | replit       |  ✅   |        |          |          |           |   ✅   |       |             |
+| Pi Coding Agent     | pi           | ✅ 🌏 |        |          |  ✅ 🌏   |           | ✅ 🌏  |       |             |
 | Zed                 | zed          |       |   ✅   |          |          |           |        |       |             |
 
 - ✅: Supports project mode

src/cli/commands/gitignore-entries.ts

@@ -38,7 +38,7 @@ export const GITIGNORE_ENTRY_REGISTRY: ReadonlyArray<GitignoreEntryTag> = [
   { target: "common", feature: "general", entry: "**/AGENTS.local.md" },
 
   // AGENTS.md
-  { target: "agentsmd", feature: "rules", entry: "**/AGENTS.md" },
+  { target: ["agentsmd", "pi"], feature: "rules", entry: "**/AGENTS.md" },
   { target: "agentsmd", feature: "rules", entry: "**/.agents/" },
 
   // Augment Code
@@ -194,6 +194,11 @@ export const GITIGNORE_ENTRY_REGISTRY: ReadonlyArray<GitignoreEntryTag> = [
     entry: "**/.opencode/package-lock.json",
   },
 
+  // Pi Coding Agent
+  { target: "pi", feature: "rules", entry: "**/.agents/memories/" },
+  { target: "pi", feature: "commands", entry: "**/.pi/prompts/" },
+  { target: "pi", feature: "skills", entry: "**/.pi/skills/" },
+
   // Qwen Code
   { target: "qwencode", feature: "rules", entry: "**/QWEN.md" },
   { target: "qwencode", feature: "general", entry: "**/.qwen/memories/" },

src/e2e/e2e-commands.spec.ts

@@ -27,6 +27,7 @@ describe("E2E: commands", () => {
     { target: "antigravity", outputPath: join(".agent", "workflows", "review-pr.md") },
     { target: "junie", outputPath: join(".junie", "commands", "review-pr.md") },
     { target: "takt", outputPath: join(".takt", "facets", "instructions", "review-pr.md") },
+    { target: "pi", outputPath: join(".pi", "prompts", "review-pr.md") },
   ])("should generate $target commands", async ({ target, outputPath }) => {
     const testDir = getTestDir();
 
@@ -90,6 +91,7 @@ Check the PR diff and provide feedback.
     { target: "kiro", orphanPath: join(".kiro", "prompts", "orphan.md") },
     { target: "antigravity", orphanPath: join(".agent", "workflows", "orphan.md") },
     { target: "junie", orphanPath: join(".junie", "commands", "orphan.md") },
+    { target: "pi", orphanPath: join(".pi", "prompts", "orphan.md") },
   ])(
     "should fail in check mode when delete would remove an orphan $target command file",
     async ({ target, orphanPath }) => {
@@ -132,6 +134,7 @@ describe("E2E: commands (import)", () => {
     { target: "kiro", sourcePath: join(".kiro", "prompts", "review-pr.md") },
     { target: "antigravity", sourcePath: join(".agent", "workflows", "review-pr.md") },
     { target: "junie", sourcePath: join(".junie", "commands", "review-pr.md") },
+    { target: "pi", sourcePath: join(".pi", "prompts", "review-pr.md") },
   ])("should import $target commands", async ({ target, sourcePath }) => {
     const testDir = getTestDir();
 
@@ -163,6 +166,7 @@ describe("E2E: commands (global mode)", () => {
       target: "takt",
       outputPath: join(".takt", "facets", "instructions", "review-pr.md"),
     },
+    { target: "pi", outputPath: join(".pi", "agent", "prompts", "review-pr.md") },
   ])("should generate $target commands in home directory", async ({ target, outputPath }) => {
     const projectDir = getProjectDir();
     const homeDir = getHomeDir();

src/e2e/e2e-rules.spec.ts

@@ -36,6 +36,7 @@ describe("E2E: rules", () => {
     { target: "junie", outputPath: join(".junie", "guidelines.md") },
     { target: "warp", outputPath: "WARP.md" },
     { target: "replit", outputPath: "replit.md" },
+    { target: "pi", outputPath: "AGENTS.md" },
   ])("should generate $target rules", async ({ target, outputPath }) => {
     const testDir = getTestDir();
 
@@ -202,6 +203,7 @@ describe("E2E: rules (import)", () => {
     },
     { target: "warp", sourcePath: "WARP.md", importedFileName: "overview.md" },
     { target: "replit", sourcePath: "replit.md", importedFileName: "overview.md" },
+    { target: "pi", sourcePath: "AGENTS.md", importedFileName: "overview.md" },
     {
       target: "cline",
       sourcePath: join(".clinerules", "overview.md"),
@@ -264,6 +266,7 @@ describe("E2E: rules (global mode)", () => {
     { target: "kilo", outputPath: join(".config", "kilo", "AGENTS.md") },
     { target: "rovodev", outputPath: join(".rovodev", "AGENTS.md") },
     { target: "takt", outputPath: join(".takt", "facets", "policies", "overview.md") },
+    { target: "pi", outputPath: join(".pi", "agent", "AGENTS.md") },
   ])("should generate $target rules in home directory", async ({ target, outputPath }) => {
     const projectDir = getProjectDir();
     const homeDir = getHomeDir();

src/e2e/e2e-skills.spec.ts

@@ -83,6 +83,10 @@ describe("E2E: skills", () => {
       target: "takt",
       outputPath: join(".takt", "facets", "knowledge", "test-skill.md"),
     },
+    {
+      target: "pi",
+      outputPath: join(".pi", "skills", "test-skill", "SKILL.md"),
+    },
   ])("should generate $target skills", async ({ target, outputPath }) => {
     const testDir = getTestDir();
 
@@ -154,6 +158,7 @@ This is the test skill body content.
     { target: "junie", orphanPath: join(".junie", "skills", "orphan-skill", "SKILL.md") },
     { target: "replit", orphanPath: join(".agents", "skills", "orphan-skill", "SKILL.md") },
     { target: "agentsskills", orphanPath: join(".agents", "skills", "orphan-skill", "SKILL.md") },
+    { target: "pi", orphanPath: join(".pi", "skills", "orphan-skill", "SKILL.md") },
   ])(
     "should fail in check mode when delete would remove an orphan $target skill file",
     async ({ target, orphanPath }) => {
@@ -202,6 +207,7 @@ describe("E2E: skills (import)", () => {
     { target: "antigravity", sourcePath: join(".agent", "skills", "test-skill", "SKILL.md") },
     { target: "junie", sourcePath: join(".junie", "skills", "test-skill", "SKILL.md") },
     { target: "replit", sourcePath: join(".agents", "skills", "test-skill", "SKILL.md") },
+    { target: "pi", sourcePath: join(".pi", "skills", "test-skill", "SKILL.md") },
   ])("should import $target skills", async ({ target, sourcePath }) => {
     const testDir = getTestDir();
 
@@ -273,6 +279,10 @@ describe("E2E: skills (global mode)", () => {
       target: "takt",
       outputPath: join(".takt", "facets", "knowledge", "test-skill.md"),
     },
+    {
+      target: "pi",
+      outputPath: join(".pi", "agent", "skills", "test-skill", "SKILL.md"),
+    },
   ])("should generate $target skills in home directory", async ({ target, outputPath }) => {
     const projectDir = getProjectDir();
     const homeDir = getHomeDir();

src/features/commands/commands-processor.test.ts

@@ -1135,6 +1135,7 @@ describe("CommandsProcessor", () => {
           "kilo",
           "kiro",
           "opencode",
+          "pi",
           "roo",
           "takt",
         ]),
@@ -1158,6 +1159,7 @@ describe("CommandsProcessor", () => {
           "kilo",
           "kiro",
           "opencode",
+          "pi",
           "roo",
           "takt",
         ]),
@@ -1179,6 +1181,7 @@ describe("CommandsProcessor", () => {
           "codexcli",
           "kilo",
           "opencode",
+          "pi",
           "takt",
         ]),
       );

src/features/commands/commands-processor.ts

@@ -22,6 +22,7 @@ import { JunieCommand } from "./junie-command.js";
 import { KiloCommand } from "./kilo-command.js";
 import { KiroCommand } from "./kiro-command.js";
 import { OpenCodeCommand } from "./opencode-command.js";
+import { PiCommand } from "./pi-command.js";
 import { RooCommand } from "./roo-command.js";
 import { RulesyncCommand } from "./rulesync-command.js";
 import { TaktCommand } from "./takt-command.js";
@@ -78,6 +79,7 @@ const commandsProcessorToolTargetTuple = [
   "kilo",
   "kiro",
   "opencode",
+  "pi",
   "roo",
   "takt",
 ] as const;
@@ -274,6 +276,19 @@ const toolCommandFactories = new Map<CommandsProcessorToolTarget, ToolCommandFac
       },
     },
   ],
+  [
+    "pi",
+    {
+      class: PiCommand,
+      meta: {
+        extension: "md",
+        supportsProject: true,
+        supportsGlobal: true,
+        isSimulated: false,
+        supportsSubdirectory: false,
+      },
+    },
+  ],
   [
     "roo",
     {