Update pi
This commit is contained in:
Martin Pander
@@ -1,66 +1,42 @@
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# Plan Mode Extension
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# Plan Mode
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Read-only exploration mode for safe code analysis.
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Minimal read-only mode. Built iteratively — v1 does one thing only.
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## Features
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## v1: no writing
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- **Built-in write tools disabled**: Disables edit/write while preserving other active tools
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- **Bash allowlist**: Only read-only bash commands are allowed
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- **Plan extraction**: Extracts numbered steps from `Plan:` sections
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- **Progress tracking**: Widget shows completion status during execution
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- **[DONE:n] markers**: Explicit step completion tracking
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- **Session persistence**: State survives session resume
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| Trigger | Effect |
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| --- | --- |
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| `/plan` | Toggle plan mode |
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| `Ctrl+Alt+P` | Toggle plan mode |
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| `pi --plan` | Start in plan mode |
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## Commands
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While active:
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- `/plan` - Toggle plan mode
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- `/todos` - Show current plan progress
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- `Ctrl+Alt+P` - Toggle plan mode (shortcut)
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- Built-in `write` and `edit` tools are removed from the active tool set
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- A `plan` marker appears in the footer status
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- The system prompt tells the model it cannot modify files
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- State is persisted, so `/resume` keeps plan mode on
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## Usage
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Toggling off restores the exact tool set captured when plan mode was enabled.
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1. Enable plan mode with `/plan` or `--plan` flag
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2. Ask the agent to analyze code and create a plan
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3. The agent should output a numbered plan under a `Plan:` header:
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## v2: `/handover`
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```
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Plan:
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1. First step description
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2. Second step description
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3. Third step description
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```
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`/handover [focus]` distils the session into a standalone plan document.
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4. Choose "Execute the plan" when prompted
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5. During execution, the agent marks steps complete with `[DONE:n]` tags
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6. Progress widget shows completion status
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- Runs a **side LLM call** over the current branch — no extra turn is added to the
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conversation, and the transcript is not polluted
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- Compaction-aware: uses the summary plus surviving entries if the branch was compacted
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- Opens the result in the editor for review; saving writes the file, an empty buffer cancels
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- Written to `.pi/plans/<YYYYMMDD-HHMM>-<slug>.md`, slug derived from the `#` heading
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- Optional `focus` argument steers what the document centres on
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## How It Works
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Document structure: `Goal`, `Findings`, `Plan` (numbered, file-scoped steps),
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`Risks & open questions`, `Files`.
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### Plan Mode (Read-Only)
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- Built-in edit/write tools disabled
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- Other active tools remain available
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- Bash commands filtered through allowlist
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- Agent creates a plan without making changes
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Works whether or not plan mode is active.
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### Execution Mode
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- Full tool access restored
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- Agent executes steps in order
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- `[DONE:n]` markers track completion
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- Widget shows progress
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## Not implemented (yet)
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### Command Allowlist
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Safe commands (allowed):
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- File inspection: `cat`, `head`, `tail`, `less`, `more`
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- Search: `grep`, `find`, `rg`, `fd`
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- Directory: `ls`, `pwd`, `tree`
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- Git read: `git status`, `git log`, `git diff`, `git branch`
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- Package info: `npm list`, `npm outdated`, `yarn info`
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- System info: `uname`, `whoami`, `date`, `uptime`
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Blocked commands:
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- File modification: `rm`, `mv`, `cp`, `mkdir`, `touch`
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- Git write: `git add`, `git commit`, `git push`
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- Package install: `npm install`, `yarn add`, `pip install`
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- System: `sudo`, `kill`, `reboot`
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- Editors: `vim`, `nano`, `code`
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- Guarding `bash` against writes — `bash` is still fully available
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- Reading a handover back in / resuming from one
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- Approval and step-by-step execution flow
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196
modules/pi/agent/extensions-common/plan-mode/handover.ts
Normal file
196
modules/pi/agent/extensions-common/plan-mode/handover.ts
Normal file
@@ -0,0 +1,196 @@
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/**
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* Handover document generation for plan mode.
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*
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* Runs a side LLM call over the current branch (does NOT add a turn to the
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* conversation), lets the user edit the result, then writes it to
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* `.pi/plans/<slug>-<timestamp>.md`.
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*/
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import type { AgentMessage } from "@earendil-works/pi-agent-core";
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import { type Message, uuidv7 } from "@earendil-works/pi-ai";
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import {
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BorderedLoader,
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CONFIG_DIR_NAME,
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convertToLlm,
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type ExtensionCommandContext,
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type SessionEntry,
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serializeConversation,
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} from "@earendil-works/pi-coding-agent";
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import { mkdir, writeFile } from "node:fs/promises";
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import { join } from "node:path";
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export const PLANS_DIR = "plans";
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const SYSTEM_PROMPT = `You write handover documents. Another engineer (or agent) will pick up
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this work with NO access to the conversation you are summarizing. The document must stand alone.
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Output GitHub-flavoured markdown with exactly these sections:
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# <short imperative title, max 8 words>
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## Goal
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One paragraph: what we are trying to achieve and why.
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## Findings
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What was learned while investigating. Cite concrete file paths and, where useful, line numbers
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or symbol names. Include things that were ruled out and why.
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## Plan
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A numbered list of concrete, actionable steps in execution order. Each step names the files it
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touches. No vague steps like "improve error handling".
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## Risks & open questions
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Bullets. Anything unverified, any decision the user still needs to make. Omit the section if
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genuinely empty.
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## Files
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Bullet list of \`path\` — one-line reason it matters.
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Rules:
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- No preamble, no "Here is the handover". Start with the \`#\` heading.
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- Be specific over complete. Facts from the conversation only; never invent file paths.
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- Do not describe the conversation itself ("the user asked..."). Describe the work.`;
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function entryToMessage(entry: SessionEntry): AgentMessage | undefined {
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if (entry.type === "message") return entry.message;
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if (entry.type === "compaction") {
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return {
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role: "compactionSummary",
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summary: entry.summary,
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tokensBefore: entry.tokensBefore,
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timestamp: new Date(entry.timestamp).getTime(),
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};
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}
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return undefined;
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}
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/** Branch messages, respecting the most recent compaction boundary. */
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function collectMessages(branch: SessionEntry[]): AgentMessage[] {
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let compactionIndex = -1;
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for (let i = branch.length - 1; i >= 0; i--) {
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if (branch[i]?.type === "compaction") {
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compactionIndex = i;
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break;
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}
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}
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if (compactionIndex < 0) {
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return branch.map(entryToMessage).filter((m): m is AgentMessage => m !== undefined);
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}
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const compaction = branch[compactionIndex];
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const firstKept =
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compaction?.type === "compaction" ? branch.findIndex((e) => e.id === compaction.firstKeptEntryId) : -1;
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return [
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compaction,
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...(firstKept >= 0 ? branch.slice(firstKept, compactionIndex) : []),
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...branch.slice(compactionIndex + 1),
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]
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.map((e) => (e ? entryToMessage(e) : undefined))
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.filter((m): m is AgentMessage => m !== undefined);
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}
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function slugify(text: string): string {
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return (
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text
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.toLowerCase()
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.replace(/[^a-z0-9]+/g, "-")
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.replace(/^-+|-+$/g, "")
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.slice(0, 50)
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.replace(/-+$/g, "") || "handover"
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);
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}
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function timestamp(): string {
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const d = new Date();
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const p = (n: number) => String(n).padStart(2, "0");
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return `${d.getFullYear()}${p(d.getMonth() + 1)}${p(d.getDate())}-${p(d.getHours())}${p(d.getMinutes())}`;
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}
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/** Derive a filename slug from the document's first `# heading`. */
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function slugFromDocument(markdown: string): string {
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const heading = markdown.match(/^#\s+(.+)$/m);
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return slugify(heading?.[1] ?? "handover");
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}
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/**
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* Generate a handover document and write it to `.pi/plans/`.
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* Returns the written path, or undefined if cancelled or unavailable.
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*/
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export async function writeHandover(ctx: ExtensionCommandContext, focus: string): Promise<string | undefined> {
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if (ctx.mode !== "tui") {
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ctx.ui.notify("/handover requires interactive mode", "error");
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return;
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}
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if (!ctx.model) {
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ctx.ui.notify("No model selected", "error");
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return;
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}
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const messages = collectMessages(ctx.sessionManager.getBranch());
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if (messages.length === 0) {
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ctx.ui.notify("Nothing to hand over yet", "warning");
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return;
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}
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const conversation = serializeConversation(convertToLlm(messages));
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const model = ctx.model;
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const generated = await ctx.ui.custom<string | null>((tui, theme, _kb, done) => {
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const loader = new BorderedLoader(tui, theme, "Writing handover document...");
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loader.onAbort = () => done(null);
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void (async () => {
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const prompt = focus
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? `## Conversation\n\n${conversation}\n\n## Focus\n\nThe handover should centre on: ${focus}`
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: `## Conversation\n\n${conversation}`;
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const userMessage: Message = {
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role: "user",
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content: [{ type: "text", text: prompt }],
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timestamp: Date.now(),
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};
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const response = await ctx.modelRegistry.complete(
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model,
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{ systemPrompt: SYSTEM_PROMPT, messages: [userMessage] },
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{ signal: loader.signal, cacheRetention: "none", sessionId: uuidv7() },
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);
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if (response.stopReason === "aborted") return null;
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return response.content
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.filter((c): c is { type: "text"; text: string } => c.type === "text")
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.map((c) => c.text)
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.join("\n")
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.trim();
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})()
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.then(done)
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.catch(() => done(null));
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return loader;
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});
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if (!generated) {
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ctx.ui.notify("Handover cancelled", "info");
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return;
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}
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const edited = await ctx.ui.editor("Review handover (save to write, empty to cancel)", generated);
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if (edited === undefined || !edited.trim()) {
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ctx.ui.notify("Handover cancelled", "info");
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return;
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}
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const dir = join(ctx.cwd, CONFIG_DIR_NAME, PLANS_DIR);
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const path = join(dir, `${timestamp()}-${slugFromDocument(edited)}.md`);
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try {
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await mkdir(dir, { recursive: true });
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await writeFile(path, `${edited.trimEnd()}\n`, "utf8");
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} catch (err) {
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ctx.ui.notify(`Failed to write handover: ${err instanceof Error ? err.message : String(err)}`, "error");
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return;
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}
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ctx.ui.notify(`Handover written to ${path}`, "info");
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return path;
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}
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@@ -1,579 +1,130 @@
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/**
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* Plan Mode Extension
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* Plan Mode — v1
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*
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* Read-only exploration + structured planning + gated step-by-step execution.
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* Scope (deliberately minimal, grown iteratively):
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* - Toggle a read-only "plan mode" via `/plan`, `Ctrl+Alt+P`, or `--plan`
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* - While active: built-in write tools (`write`, `edit`) are disabled
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* - Footer status shows when plan mode is active
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* - The model is told it cannot make changes
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* - State survives session resume
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* - `/handover` distils the session into a plan document under `.pi/plans/`
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*
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* Features:
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* - /plan command or Ctrl+Alt+P to toggle read-only plan mode
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* - Bash restricted to allowlisted read-only commands, edit/write disabled
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* - `submit_plan` tool: model returns a STRUCTURED plan (title + steps + risks + files)
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* - Plans are saved to `.pi/plans/<slug>-<timestamp>.md` (recognizable name + timestamp)
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* - Per-step execution gating: you approve/skip/stop each step before it runs
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* - Progress tracking widget + footer status, persisted across resume
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* NOT handled yet (future iterations): bash write guarding, approval flow,
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* execution tracking.
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*/
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import type { AgentMessage } from "@earendil-works/pi-agent-core";
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import type { TextContent } from "@earendil-works/pi-ai";
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import {
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CONFIG_DIR_NAME,
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type ExtensionAPI,
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type ExtensionContext,
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} from "@earendil-works/pi-coding-agent";
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import type { ExtensionAPI, ExtensionContext } from "@earendil-works/pi-coding-agent";
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import { Key } from "@earendil-works/pi-tui";
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import { mkdir, writeFile } from "node:fs/promises";
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import { join } from "node:path";
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import { Type, type Static } from "typebox";
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import { isSafeCommand } from "./utils.ts";
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import { writeHandover } from "./handover.ts";
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// Tools
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const PLAN_MODE_TOOLS = ["read", "bash", "grep", "find", "ls", "questionnaire", "submit_plan"];
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const NORMAL_MODE_TOOLS = ["read", "bash", "edit", "write"];
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const PLAN_MODE_DISABLED_TOOLS = new Set<string>(["edit", "write"]);
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const PLAN_MANAGED_TOOLS = new Set<string>([...PLAN_MODE_TOOLS, ...NORMAL_MODE_TOOLS]);
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/** Built-in tools that can mutate the filesystem. */
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const WRITE_TOOLS = new Set(["write", "edit"]);
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type Phase = "planning" | "awaiting-approval" | "executing";
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interface PlanStep {
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text: string;
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completed?: boolean;
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skipped?: boolean;
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}
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interface StoredPlan {
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title: string;
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createdAt: string;
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steps: PlanStep[];
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risks?: string[];
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files?: string[];
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}
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const STATE_ENTRY = "plan-mode";
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interface PlanModeState {
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enabled: boolean;
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phase?: Phase;
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plan?: StoredPlan;
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currentStepIndex?: number;
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planFilePath?: string;
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toolsBeforePlanMode?: string[];
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/** Active tool list captured before plan mode narrowed it. */
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savedTools?: string[];
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}
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// ---- submit_plan tool schema ----
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const submitPlanSchema = Type.Object({
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title: Type.String({
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description: "A short, recognizable name for this plan (e.g. 'Add OAuth login').",
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}),
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steps: Type.Array(
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Type.Object({
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description: Type.String({ description: "A single, concrete, actionable step." }),
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}),
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{ description: "Ordered list of steps to implement the plan." },
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),
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risks: Type.Optional(Type.Array(Type.String(), { description: "Potential risks, caveats, or open questions." })),
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files: Type.Optional(Type.Array(Type.String(), { description: "Files likely to be created or modified." })),
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});
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export type SubmitPlanInput = Static<typeof submitPlanSchema>;
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const PLAN_MODE_PROMPT = `[PLAN MODE ACTIVE]
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// ---- file persistence helpers ----
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function slugify(title: string): string {
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const slug = title
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.toLowerCase()
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.replace(/[^a-z0-9]+/g, "-")
|
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.replace(/^-+|-+$/g, "")
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.slice(0, 50)
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.replace(/-+$/g, "");
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return slug || "plan";
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}
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You are in plan mode. The built-in \`write\` and \`edit\` tools are disabled for
|
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this turn, so you cannot modify files.
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||||
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function fileTimestamp(): string {
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const d = new Date();
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||||
const p = (n: number) => String(n).padStart(2, "0");
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||||
return `${d.getFullYear()}${p(d.getMonth() + 1)}${p(d.getDate())}-${p(d.getHours())}${p(d.getMinutes())}${p(d.getSeconds())}`;
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}
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||||
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function renderPlanMarkdown(plan: StoredPlan): string {
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const lines: string[] = [];
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lines.push(`# ${plan.title}`);
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lines.push("");
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||||
lines.push(`_Created: ${plan.createdAt}_`);
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||||
lines.push("");
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||||
lines.push("## Steps");
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lines.push("");
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||||
plan.steps.forEach((s, i) => {
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const box = s.completed ? "x" : " ";
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||||
const suffix = s.skipped ? " _(skipped)_" : "";
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lines.push(`${i + 1}. [${box}] ${s.text}${suffix}`);
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||||
});
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if (plan.risks?.length) {
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lines.push("");
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lines.push("## Risks");
|
||||
lines.push("");
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for (const r of plan.risks) lines.push(`- ${r}`);
|
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}
|
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if (plan.files?.length) {
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lines.push("");
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||||
lines.push("## Files");
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||||
lines.push("");
|
||||
for (const f of plan.files) lines.push(`- ${f}`);
|
||||
}
|
||||
lines.push("");
|
||||
return lines.join("\n");
|
||||
}
|
||||
Investigate, read code, and answer. When the user asks for changes, describe
|
||||
what you would do instead of attempting it. Do not try to route around the
|
||||
restriction (for example by writing files through \`bash\`).`;
|
||||
|
||||
export default function planModeExtension(pi: ExtensionAPI): void {
|
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let planModeEnabled = false;
|
||||
let phase: Phase | undefined;
|
||||
let plan: StoredPlan | undefined;
|
||||
let currentStepIndex = 0;
|
||||
let awaitingStep = false;
|
||||
let planFilePath: string | undefined;
|
||||
let toolsBeforePlanMode: string[] | undefined;
|
||||
let enabled = false;
|
||||
let savedTools: string[] | undefined;
|
||||
|
||||
pi.registerFlag("plan", {
|
||||
description: "Start in plan mode (read-only exploration)",
|
||||
description: "Start in plan mode (read-only)",
|
||||
type: "boolean",
|
||||
default: false,
|
||||
});
|
||||
|
||||
// ---- tool management ----
|
||||
function uniqueToolNames(toolNames: string[]): string[] {
|
||||
return [...new Set(toolNames)];
|
||||
function persist(): void {
|
||||
pi.appendEntry(STATE_ENTRY, { enabled, savedTools } satisfies PlanModeState);
|
||||
}
|
||||
function getPlanModeTools(activeToolNames: string[]): string[] {
|
||||
return uniqueToolNames([
|
||||
...activeToolNames.filter((name) => !PLAN_MODE_DISABLED_TOOLS.has(name)),
|
||||
...PLAN_MODE_TOOLS,
|
||||
]);
|
||||
}
|
||||
function getNormalModeTools(activeToolNames: string[]): string[] {
|
||||
return uniqueToolNames([
|
||||
...NORMAL_MODE_TOOLS,
|
||||
...activeToolNames.filter((name) => !PLAN_MANAGED_TOOLS.has(name)),
|
||||
]);
|
||||
}
|
||||
function enablePlanModeTools(): void {
|
||||
if (toolsBeforePlanMode === undefined) {
|
||||
toolsBeforePlanMode = pi.getActiveTools();
|
||||
|
||||
function applyToolRestrictions(): void {
|
||||
if (savedTools === undefined) {
|
||||
savedTools = pi.getActiveTools();
|
||||
}
|
||||
pi.setActiveTools(getPlanModeTools(toolsBeforePlanMode));
|
||||
}
|
||||
function restoreNormalModeTools(): void {
|
||||
pi.setActiveTools(toolsBeforePlanMode ?? getNormalModeTools(pi.getActiveTools()));
|
||||
toolsBeforePlanMode = undefined;
|
||||
pi.setActiveTools(savedTools.filter((name) => !WRITE_TOOLS.has(name)));
|
||||
}
|
||||
|
||||
// ---- state ----
|
||||
function persistState(): void {
|
||||
pi.appendEntry("plan-mode", {
|
||||
enabled: planModeEnabled,
|
||||
phase,
|
||||
plan,
|
||||
currentStepIndex,
|
||||
planFilePath,
|
||||
toolsBeforePlanMode,
|
||||
} satisfies PlanModeState);
|
||||
}
|
||||
|
||||
async function persistPlanFile(): Promise<void> {
|
||||
if (!planFilePath || !plan) return;
|
||||
try {
|
||||
await writeFile(planFilePath, renderPlanMarkdown(plan), "utf8");
|
||||
} catch {
|
||||
// ignore write failures
|
||||
function restoreTools(): void {
|
||||
if (savedTools !== undefined) {
|
||||
pi.setActiveTools(savedTools);
|
||||
savedTools = undefined;
|
||||
return;
|
||||
}
|
||||
// No snapshot (e.g. resumed session): re-enable write tools additively.
|
||||
pi.setActiveTools([...new Set([...pi.getActiveTools(), ...WRITE_TOOLS])]);
|
||||
}
|
||||
|
||||
async function savePlanFile(ctx: ExtensionContext, p: StoredPlan): Promise<string> {
|
||||
const dir = join(ctx.cwd, CONFIG_DIR_NAME, "plans");
|
||||
await mkdir(dir, { recursive: true });
|
||||
const path = join(dir, `${slugify(p.title)}-${fileTimestamp()}.md`);
|
||||
await writeFile(path, renderPlanMarkdown(p), "utf8");
|
||||
return path;
|
||||
}
|
||||
|
||||
// ---- UI ----
|
||||
function updateStatus(ctx: ExtensionContext): void {
|
||||
if (phase === "executing" && plan) {
|
||||
const done = plan.steps.filter((s) => s.completed).length;
|
||||
ctx.ui.setStatus("plan-mode", ctx.ui.theme.fg("accent", `📋 ${done}/${plan.steps.length}`));
|
||||
} else if (planModeEnabled) {
|
||||
ctx.ui.setStatus("plan-mode", ctx.ui.theme.fg("warning", "⏸ plan"));
|
||||
} else {
|
||||
ctx.ui.setStatus("plan-mode", undefined);
|
||||
}
|
||||
|
||||
if ((phase === "executing" || phase === "awaiting-approval") && plan) {
|
||||
const lines = [ctx.ui.theme.fg("accent", plan.title)];
|
||||
plan.steps.forEach((s, i) => {
|
||||
let mark: string;
|
||||
let text = s.text;
|
||||
if (s.completed) {
|
||||
mark = ctx.ui.theme.fg("success", "☑ ");
|
||||
text = ctx.ui.theme.fg("muted", ctx.ui.theme.strikethrough(text));
|
||||
} else if (s.skipped) {
|
||||
mark = ctx.ui.theme.fg("muted", "⊘ ");
|
||||
text = ctx.ui.theme.fg("muted", text);
|
||||
} else if (phase === "executing" && i === currentStepIndex) {
|
||||
mark = ctx.ui.theme.fg("accent", "▶ ");
|
||||
} else {
|
||||
mark = ctx.ui.theme.fg("muted", "☐ ");
|
||||
}
|
||||
lines.push(`${mark}${text}`);
|
||||
});
|
||||
ctx.ui.setWidget("plan-todos", lines);
|
||||
} else {
|
||||
ctx.ui.setWidget("plan-todos", undefined);
|
||||
}
|
||||
ctx.ui.setStatus("plan-mode", enabled ? ctx.ui.theme.fg("warning", "plan") : undefined);
|
||||
}
|
||||
|
||||
// ---- mode toggle ----
|
||||
function togglePlanMode(ctx: ExtensionContext): void {
|
||||
planModeEnabled = !planModeEnabled;
|
||||
phase = planModeEnabled ? "planning" : undefined;
|
||||
plan = undefined;
|
||||
planFilePath = undefined;
|
||||
currentStepIndex = 0;
|
||||
awaitingStep = false;
|
||||
function setEnabled(next: boolean, ctx: ExtensionContext): void {
|
||||
if (next === enabled) return;
|
||||
enabled = next;
|
||||
|
||||
if (planModeEnabled) {
|
||||
enablePlanModeTools();
|
||||
ctx.ui.notify("Plan mode enabled. Built-in write tools disabled. Ask for a plan, then submit_plan.");
|
||||
if (enabled) {
|
||||
applyToolRestrictions();
|
||||
ctx.ui.notify("Plan mode on — write and edit disabled.", "info");
|
||||
} else {
|
||||
restoreNormalModeTools();
|
||||
ctx.ui.notify("Plan mode disabled. Full access restored.");
|
||||
restoreTools();
|
||||
ctx.ui.notify("Plan mode off — write access restored.", "info");
|
||||
}
|
||||
|
||||
updateStatus(ctx);
|
||||
persistState();
|
||||
persist();
|
||||
}
|
||||
|
||||
// ---- execution gating ----
|
||||
function finishExecution(ctx: ExtensionContext): void {
|
||||
if (plan) {
|
||||
const summary = plan.steps
|
||||
.map((s) => (s.completed ? `~~${s.text}~~` : s.skipped ? `${s.text} (skipped)` : s.text))
|
||||
.join("\n");
|
||||
pi.sendMessage(
|
||||
{ customType: "plan-complete", content: `**Plan "${plan.title}" complete!** ✓\n\n${summary}`, display: true },
|
||||
{ triggerTurn: false },
|
||||
);
|
||||
}
|
||||
phase = undefined;
|
||||
awaitingStep = false;
|
||||
updateStatus(ctx);
|
||||
persistState();
|
||||
void persistPlanFile();
|
||||
}
|
||||
|
||||
async function gateNext(ctx: ExtensionContext): Promise<void> {
|
||||
if (!plan) {
|
||||
phase = undefined;
|
||||
return;
|
||||
}
|
||||
if (currentStepIndex >= plan.steps.length) {
|
||||
finishExecution(ctx);
|
||||
return;
|
||||
}
|
||||
|
||||
const step = plan.steps[currentStepIndex];
|
||||
if (!step) {
|
||||
finishExecution(ctx);
|
||||
return;
|
||||
}
|
||||
|
||||
const choice = await ctx.ui.select(
|
||||
`Step ${currentStepIndex + 1}/${plan.steps.length}: ${step.text}`,
|
||||
["Execute this step", "Skip this step", "Stop execution"],
|
||||
);
|
||||
|
||||
if (choice?.startsWith("Execute")) {
|
||||
awaitingStep = true;
|
||||
updateStatus(ctx);
|
||||
const stepMsg = `Execute ONLY step ${currentStepIndex + 1} of ${plan.steps.length} from plan "${plan.title}":
|
||||
|
||||
${step.text}
|
||||
|
||||
Do just this one step. Do NOT start any other step. Stop when this step is done.`;
|
||||
pi.sendMessage(
|
||||
{ customType: "plan-step", content: stepMsg, display: true },
|
||||
{ triggerTurn: true, deliverAs: "followUp" },
|
||||
);
|
||||
} else if (choice?.startsWith("Skip")) {
|
||||
step.skipped = true;
|
||||
currentStepIndex++;
|
||||
updateStatus(ctx);
|
||||
persistState();
|
||||
await persistPlanFile();
|
||||
await gateNext(ctx);
|
||||
} else {
|
||||
ctx.ui.notify("Plan execution stopped.", "info");
|
||||
phase = undefined;
|
||||
awaitingStep = false;
|
||||
updateStatus(ctx);
|
||||
persistState();
|
||||
}
|
||||
}
|
||||
|
||||
async function handleApproval(ctx: ExtensionContext): Promise<void> {
|
||||
if (!plan) {
|
||||
phase = undefined;
|
||||
return;
|
||||
}
|
||||
const choice = await ctx.ui.select(
|
||||
`Plan "${plan.title}" — ${plan.steps.length} steps.\nWhat next?`,
|
||||
["Execute step-by-step", "Stay in plan mode", "Refine the plan", "Save plan to file"],
|
||||
);
|
||||
|
||||
if (choice?.startsWith("Execute")) {
|
||||
planModeEnabled = false;
|
||||
phase = "executing";
|
||||
currentStepIndex = 0;
|
||||
awaitingStep = false;
|
||||
restoreNormalModeTools();
|
||||
updateStatus(ctx);
|
||||
persistState();
|
||||
await gateNext(ctx);
|
||||
} else if (choice === "Refine the plan") {
|
||||
phase = "planning";
|
||||
const refinement = await ctx.ui.editor("Refine the plan:", "");
|
||||
updateStatus(ctx);
|
||||
persistState();
|
||||
if (refinement?.trim()) {
|
||||
pi.sendUserMessage(refinement.trim(), { deliverAs: "followUp" });
|
||||
}
|
||||
} else if (choice === "Save plan to file") {
|
||||
try {
|
||||
planFilePath = await savePlanFile(ctx, plan);
|
||||
ctx.ui.notify(`Plan saved to ${planFilePath}`, "info");
|
||||
persistState();
|
||||
} catch {
|
||||
ctx.ui.notify("Failed to save plan.", "error");
|
||||
}
|
||||
} else {
|
||||
phase = "planning";
|
||||
updateStatus(ctx);
|
||||
persistState();
|
||||
}
|
||||
}
|
||||
|
||||
// ---- commands & shortcuts ----
|
||||
pi.registerCommand("plan", {
|
||||
description: "Toggle plan mode (read-only exploration + structured planning)",
|
||||
handler: async (_args, ctx) => togglePlanMode(ctx),
|
||||
description: "Toggle plan mode (read-only)",
|
||||
handler: async (_args, ctx) => setEnabled(!enabled, ctx),
|
||||
});
|
||||
|
||||
pi.registerCommand("plan-status", {
|
||||
description: "Show the current plan and progress",
|
||||
handler: async (_args, ctx) => {
|
||||
if (!plan) {
|
||||
ctx.ui.notify("No plan yet. Enable /plan and ask the agent to submit_plan.", "info");
|
||||
return;
|
||||
}
|
||||
const list = plan.steps
|
||||
.map((s, i) => `${i + 1}. ${s.completed ? "✓" : s.skipped ? "⊘" : "○"} ${s.text}`)
|
||||
.join("\n");
|
||||
const loc = planFilePath ? `\n\nFile: ${planFilePath}` : "";
|
||||
ctx.ui.notify(`Plan "${plan.title}" (${phase ?? "idle"}):\n${list}${loc}`, "info");
|
||||
},
|
||||
});
|
||||
|
||||
pi.registerCommand("plan-continue", {
|
||||
description: "Resume gated step-by-step execution of the current plan",
|
||||
handler: async (_args, ctx) => {
|
||||
if (phase !== "executing" || !plan) {
|
||||
ctx.ui.notify("No plan execution in progress.", "info");
|
||||
return;
|
||||
}
|
||||
if (awaitingStep) {
|
||||
ctx.ui.notify("A step is already running.", "info");
|
||||
return;
|
||||
}
|
||||
await gateNext(ctx);
|
||||
},
|
||||
});
|
||||
|
||||
pi.registerCommand("plan-save", {
|
||||
description: "Save the current plan to a file in .pi/plans/",
|
||||
handler: async (_args, ctx) => {
|
||||
if (!plan) {
|
||||
ctx.ui.notify("No plan to save. Submit a plan first.", "info");
|
||||
return;
|
||||
}
|
||||
try {
|
||||
planFilePath = await savePlanFile(ctx, plan);
|
||||
ctx.ui.notify(`Plan saved to ${planFilePath}`, "info");
|
||||
persistState();
|
||||
} catch {
|
||||
ctx.ui.notify("Failed to save plan.", "error");
|
||||
}
|
||||
pi.registerCommand("handover", {
|
||||
description: "Write a handover document for this session to .pi/plans/",
|
||||
handler: async (args, ctx) => {
|
||||
await writeHandover(ctx, args.trim());
|
||||
},
|
||||
});
|
||||
|
||||
pi.registerShortcut(Key.ctrlAlt("p"), {
|
||||
description: "Toggle plan mode",
|
||||
handler: async (ctx) => togglePlanMode(ctx),
|
||||
handler: async (ctx) => setEnabled(!enabled, ctx),
|
||||
});
|
||||
|
||||
// ---- submit_plan tool ----
|
||||
pi.registerTool({
|
||||
name: "submit_plan",
|
||||
label: "Submit Plan",
|
||||
description:
|
||||
"Submit a structured implementation plan for user approval. ONLY available in plan mode. " +
|
||||
"Call this once analysis is finished and you are ready to propose the work. After calling it, stop and wait for the user.",
|
||||
promptSnippet: "Submit a structured plan (title + numbered steps) for approval while in plan mode",
|
||||
promptGuidelines: [
|
||||
"Use submit_plan to deliver your plan when in plan mode instead of writing a free-form 'Plan:' section.",
|
||||
"After calling submit_plan, do not take further action; wait for the user to approve, refine, or execute.",
|
||||
],
|
||||
parameters: submitPlanSchema,
|
||||
async execute(_toolCallId, params: SubmitPlanInput, _signal, _onUpdate, ctx) {
|
||||
if (!planModeEnabled) {
|
||||
return {
|
||||
content: [
|
||||
{ type: "text", text: "submit_plan is only available in plan mode. Enable it with /plan first." },
|
||||
],
|
||||
isError: true,
|
||||
details: {},
|
||||
};
|
||||
}
|
||||
|
||||
plan = {
|
||||
title: params.title.trim() || "Untitled plan",
|
||||
createdAt: new Date().toISOString(),
|
||||
steps: params.steps
|
||||
.map((s) => ({ text: s.description.trim(), completed: false }))
|
||||
.filter((s) => s.text.length > 0),
|
||||
risks: params.risks?.map((r) => r.trim()).filter(Boolean),
|
||||
files: params.files?.map((f) => f.trim()).filter(Boolean),
|
||||
};
|
||||
currentStepIndex = 0;
|
||||
awaitingStep = false;
|
||||
phase = "awaiting-approval";
|
||||
|
||||
persistState();
|
||||
updateStatus(ctx);
|
||||
|
||||
return {
|
||||
content: [
|
||||
{
|
||||
type: "text",
|
||||
text: `Plan "${plan.title}" with ${plan.steps.length} step(s) submitted. Stop here and wait for the user to approve, refine, or execute. Use /plan-save to save the plan to a file.`,
|
||||
},
|
||||
],
|
||||
details: { title: plan.title, steps: plan.steps.length },
|
||||
terminate: true,
|
||||
};
|
||||
},
|
||||
pi.on("before_agent_start", async (event) => {
|
||||
if (!enabled) return;
|
||||
return { systemPrompt: `${event.systemPrompt}\n\n${PLAN_MODE_PROMPT}` };
|
||||
});
|
||||
|
||||
// ---- block destructive bash in plan mode ----
|
||||
pi.on("tool_call", async (event) => {
|
||||
if (!planModeEnabled || event.toolName !== "bash") return;
|
||||
const command = event.input.command as string;
|
||||
if (!isSafeCommand(command)) {
|
||||
return {
|
||||
block: true,
|
||||
reason: `Plan mode: command blocked (not allowlisted). Use /plan to disable plan mode first.\nCommand: ${command}`,
|
||||
};
|
||||
}
|
||||
});
|
||||
|
||||
// ---- strip stale plan-mode context when not in plan mode ----
|
||||
pi.on("context", async (event) => {
|
||||
if (planModeEnabled) return;
|
||||
return {
|
||||
messages: event.messages.filter((m) => {
|
||||
const msg = m as AgentMessage & { customType?: string };
|
||||
if (msg.customType === "plan-mode-context") return false;
|
||||
if (msg.role !== "user") return true;
|
||||
const content = msg.content;
|
||||
if (typeof content === "string") return !content.includes("[PLAN MODE ACTIVE]");
|
||||
if (Array.isArray(content)) {
|
||||
return !content.some(
|
||||
(c) => c.type === "text" && (c as TextContent).text?.includes("[PLAN MODE ACTIVE]"),
|
||||
);
|
||||
}
|
||||
return true;
|
||||
}),
|
||||
};
|
||||
});
|
||||
|
||||
// ---- inject plan-mode instructions ----
|
||||
pi.on("before_agent_start", async () => {
|
||||
if (!planModeEnabled) return;
|
||||
return {
|
||||
message: {
|
||||
customType: "plan-mode-context",
|
||||
content: `[PLAN MODE ACTIVE]
|
||||
You are in plan mode - a read-only exploration mode for safe code analysis.
|
||||
|
||||
Restrictions:
|
||||
- Built-in edit and write tools are disabled
|
||||
- Bash is restricted to an allowlist of read-only commands
|
||||
- Do NOT attempt to make changes - only investigate and plan
|
||||
|
||||
Explore the code, ask clarifying questions if needed, then call the "submit_plan" tool with:
|
||||
- title: a short, recognizable name for the plan
|
||||
- steps: an ordered list of concrete, actionable steps
|
||||
- risks: optional caveats or open questions
|
||||
- files: optional files you expect to create or modify
|
||||
|
||||
Do NOT write a free-form "Plan:" section - use the submit_plan tool instead.
|
||||
After submitting, stop and wait for the user.`,
|
||||
display: false,
|
||||
},
|
||||
};
|
||||
});
|
||||
|
||||
// ---- drive approval + gated execution when the agent settles ----
|
||||
pi.on("agent_settled", async (_event, ctx) => {
|
||||
if (!ctx.hasUI) return;
|
||||
|
||||
if (phase === "awaiting-approval") {
|
||||
await handleApproval(ctx);
|
||||
return;
|
||||
}
|
||||
|
||||
if (phase === "executing" && awaitingStep) {
|
||||
awaitingStep = false;
|
||||
const step = plan?.steps[currentStepIndex];
|
||||
if (step) step.completed = true;
|
||||
currentStepIndex++;
|
||||
updateStatus(ctx);
|
||||
persistState();
|
||||
await persistPlanFile();
|
||||
await gateNext(ctx);
|
||||
}
|
||||
});
|
||||
|
||||
// ---- restore state on session start / resume ----
|
||||
pi.on("session_start", async (_event, ctx) => {
|
||||
if (pi.getFlag("plan") === true) {
|
||||
planModeEnabled = true;
|
||||
phase = "planning";
|
||||
}
|
||||
|
||||
const entries = ctx.sessionManager.getEntries();
|
||||
const planModeEntry = entries
|
||||
.filter((e: { type: string; customType?: string }) => e.type === "custom" && e.customType === "plan-mode")
|
||||
const last = entries
|
||||
.filter((e: { type: string; customType?: string }) => e.type === "custom" && e.customType === STATE_ENTRY)
|
||||
.pop() as { data?: PlanModeState } | undefined;
|
||||
|
||||
if (planModeEntry?.data) {
|
||||
const d = planModeEntry.data;
|
||||
planModeEnabled = d.enabled ?? planModeEnabled;
|
||||
phase = d.phase ?? phase;
|
||||
plan = d.plan ?? plan;
|
||||
currentStepIndex = d.currentStepIndex ?? currentStepIndex;
|
||||
planFilePath = d.planFilePath ?? planFilePath;
|
||||
toolsBeforePlanMode = d.toolsBeforePlanMode ?? toolsBeforePlanMode;
|
||||
awaitingStep = false; // never resume mid-step automatically
|
||||
if (last?.data) {
|
||||
enabled = last.data.enabled;
|
||||
savedTools = last.data.savedTools;
|
||||
}
|
||||
if (pi.getFlag("plan") === true) {
|
||||
enabled = true;
|
||||
}
|
||||
|
||||
if (planModeEnabled) {
|
||||
enablePlanModeTools();
|
||||
}
|
||||
if (enabled) applyToolRestrictions();
|
||||
updateStatus(ctx);
|
||||
|
||||
if (phase === "executing" && plan && ctx.hasUI) {
|
||||
ctx.ui.notify(`Plan "${plan.title}" execution paused. Use /plan-continue to resume.`, "info");
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
@@ -1,168 +0,0 @@
|
||||
/**
|
||||
* Pure utility functions for plan mode.
|
||||
* Extracted for testability.
|
||||
*/
|
||||
|
||||
// Destructive commands blocked in plan mode
|
||||
const DESTRUCTIVE_PATTERNS = [
|
||||
/\brm\b/i,
|
||||
/\brmdir\b/i,
|
||||
/\bmv\b/i,
|
||||
/\bcp\b/i,
|
||||
/\bmkdir\b/i,
|
||||
/\btouch\b/i,
|
||||
/\bchmod\b/i,
|
||||
/\bchown\b/i,
|
||||
/\bchgrp\b/i,
|
||||
/\bln\b/i,
|
||||
/\btee\b/i,
|
||||
/\btruncate\b/i,
|
||||
/\bdd\b/i,
|
||||
/\bshred\b/i,
|
||||
/(^|[^<])>(?!>)/,
|
||||
/>>/,
|
||||
/\bnpm\s+(install|uninstall|update|ci|link|publish)/i,
|
||||
/\byarn\s+(add|remove|install|publish)/i,
|
||||
/\bpnpm\s+(add|remove|install|publish)/i,
|
||||
/\bpip\s+(install|uninstall)/i,
|
||||
/\bapt(-get)?\s+(install|remove|purge|update|upgrade)/i,
|
||||
/\bbrew\s+(install|uninstall|upgrade)/i,
|
||||
/\bgit\s+(add|commit|push|pull|merge|rebase|reset|checkout|branch\s+-[dD]|stash|cherry-pick|revert|tag|init|clone)/i,
|
||||
/\bsudo\b/i,
|
||||
/\bsu\b/i,
|
||||
/\bkill\b/i,
|
||||
/\bpkill\b/i,
|
||||
/\bkillall\b/i,
|
||||
/\breboot\b/i,
|
||||
/\bshutdown\b/i,
|
||||
/\bsystemctl\s+(start|stop|restart|enable|disable)/i,
|
||||
/\bservice\s+\S+\s+(start|stop|restart)/i,
|
||||
/\b(vim?|nano|emacs|code|subl)\b/i,
|
||||
];
|
||||
|
||||
// Safe read-only commands allowed in plan mode
|
||||
const SAFE_PATTERNS = [
|
||||
/^\s*cat\b/,
|
||||
/^\s*head\b/,
|
||||
/^\s*tail\b/,
|
||||
/^\s*less\b/,
|
||||
/^\s*more\b/,
|
||||
/^\s*grep\b/,
|
||||
/^\s*find\b/,
|
||||
/^\s*ls\b/,
|
||||
/^\s*pwd\b/,
|
||||
/^\s*echo\b/,
|
||||
/^\s*printf\b/,
|
||||
/^\s*wc\b/,
|
||||
/^\s*sort\b/,
|
||||
/^\s*uniq\b/,
|
||||
/^\s*diff\b/,
|
||||
/^\s*file\b/,
|
||||
/^\s*stat\b/,
|
||||
/^\s*du\b/,
|
||||
/^\s*df\b/,
|
||||
/^\s*tree\b/,
|
||||
/^\s*which\b/,
|
||||
/^\s*whereis\b/,
|
||||
/^\s*type\b/,
|
||||
/^\s*env\b/,
|
||||
/^\s*printenv\b/,
|
||||
/^\s*uname\b/,
|
||||
/^\s*whoami\b/,
|
||||
/^\s*id\b/,
|
||||
/^\s*date\b/,
|
||||
/^\s*cal\b/,
|
||||
/^\s*uptime\b/,
|
||||
/^\s*ps\b/,
|
||||
/^\s*top\b/,
|
||||
/^\s*htop\b/,
|
||||
/^\s*free\b/,
|
||||
/^\s*git\s+(status|log|diff|show|branch|remote|config\s+--get)/i,
|
||||
/^\s*git\s+ls-/i,
|
||||
/^\s*npm\s+(list|ls|view|info|search|outdated|audit)/i,
|
||||
/^\s*yarn\s+(list|info|why|audit)/i,
|
||||
/^\s*node\s+--version/i,
|
||||
/^\s*python\s+--version/i,
|
||||
/^\s*curl\s/i,
|
||||
/^\s*wget\s+-O\s*-/i,
|
||||
/^\s*jq\b/,
|
||||
/^\s*sed\s+-n/i,
|
||||
/^\s*awk\b/,
|
||||
/^\s*rg\b/,
|
||||
/^\s*fd\b/,
|
||||
/^\s*bat\b/,
|
||||
/^\s*eza\b/,
|
||||
];
|
||||
|
||||
export function isSafeCommand(command: string): boolean {
|
||||
const isDestructive = DESTRUCTIVE_PATTERNS.some((p) => p.test(command));
|
||||
const isSafe = SAFE_PATTERNS.some((p) => p.test(command));
|
||||
return !isDestructive && isSafe;
|
||||
}
|
||||
|
||||
export interface TodoItem {
|
||||
step: number;
|
||||
text: string;
|
||||
completed: boolean;
|
||||
}
|
||||
|
||||
export function cleanStepText(text: string): string {
|
||||
let cleaned = text
|
||||
.replace(/\*{1,2}([^*]+)\*{1,2}/g, "$1") // Remove bold/italic
|
||||
.replace(/`([^`]+)`/g, "$1") // Remove code
|
||||
.replace(
|
||||
/^(Use|Run|Execute|Create|Write|Read|Check|Verify|Update|Modify|Add|Remove|Delete|Install)\s+(the\s+)?/i,
|
||||
"",
|
||||
)
|
||||
.replace(/\s+/g, " ")
|
||||
.trim();
|
||||
|
||||
if (cleaned.length > 0) {
|
||||
cleaned = cleaned.charAt(0).toUpperCase() + cleaned.slice(1);
|
||||
}
|
||||
if (cleaned.length > 50) {
|
||||
cleaned = `${cleaned.slice(0, 47)}...`;
|
||||
}
|
||||
return cleaned;
|
||||
}
|
||||
|
||||
export function extractTodoItems(message: string): TodoItem[] {
|
||||
const items: TodoItem[] = [];
|
||||
const headerMatch = message.match(/\*{0,2}Plan:\*{0,2}\s*\n/i);
|
||||
if (!headerMatch) return items;
|
||||
|
||||
const planSection = message.slice(message.indexOf(headerMatch[0]) + headerMatch[0].length);
|
||||
const numberedPattern = /^\s*(\d+)[.)]\s+\*{0,2}([^*\n]+)/gm;
|
||||
|
||||
for (const match of planSection.matchAll(numberedPattern)) {
|
||||
const text = match[2]
|
||||
.trim()
|
||||
.replace(/\*{1,2}$/, "")
|
||||
.trim();
|
||||
if (text.length > 5 && !text.startsWith("`") && !text.startsWith("/") && !text.startsWith("-")) {
|
||||
const cleaned = cleanStepText(text);
|
||||
if (cleaned.length > 3) {
|
||||
items.push({ step: items.length + 1, text: cleaned, completed: false });
|
||||
}
|
||||
}
|
||||
}
|
||||
return items;
|
||||
}
|
||||
|
||||
export function extractDoneSteps(message: string): number[] {
|
||||
const steps: number[] = [];
|
||||
for (const match of message.matchAll(/\[DONE:(\d+)\]/gi)) {
|
||||
const step = Number(match[1]);
|
||||
if (Number.isFinite(step)) steps.push(step);
|
||||
}
|
||||
return steps;
|
||||
}
|
||||
|
||||
export function markCompletedSteps(text: string, items: TodoItem[]): number {
|
||||
const doneSteps = extractDoneSteps(text);
|
||||
for (const step of doneSteps) {
|
||||
const item = items.find((t) => t.step === step);
|
||||
if (item) item.completed = true;
|
||||
}
|
||||
return doneSteps.length;
|
||||
}
|
||||
Reference in New Issue
Block a user