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chore: simplify codex prompt handling

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This commit is contained in:
Mario Zechner 2026-01-17 21:53:01 +01:00
parent 94bd7f69fd
commit 4068bc556a
8 changed files with 33 additions and 87 deletions
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40
packages/coding-agent/src/core/system-prompt.ts
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@ -2,11 +2,10 @@
* System prompt construction and project context loading
*/
import { PI_STATIC_INSTRUCTIONS } from "@mariozechner/pi-ai";
import chalk from "chalk";
import { existsSync, readFileSync } from "fs";
import { join, resolve } from "path";
import { getAgentDir, getReadmePath } from "../config.js";
import { getAgentDir, getDocsPath, getExamplesPath, getReadmePath } from "../config.js";
import type { SkillsSettings } from "./settings-manager.js";
import { formatSkillsForPrompt, loadSkills, type Skill } from "./skills.js";
import type { ToolName } from "./tools/index.js";
@ -136,17 +135,6 @@ export interface BuildSystemPromptOptions {
skills?: Skill[];
}
/**
* Get the Pi installation path for documentation references.
* This resolves the pi-internal:// scheme used in the static instructions.
*/
function getPiPath(): string {
// getReadmePath returns something like /path/to/pi/README.md
// We want the parent directory
const readmePath = getReadmePath();
return resolve(readmePath, "..");
}
/** Build the system prompt with tools, guidelines, and context */
export function buildSystemPrompt(options: BuildSystemPromptOptions = {}): string {
const {
@ -185,7 +173,6 @@ export function buildSystemPrompt(options: BuildSystemPromptOptions = {}): strin
providedSkills ??
(skillsSettings?.enabled !== false ? loadSkills({ ...skillsSettings, cwd: resolvedCwd, agentDir }).skills : []);
// Handle custom prompt (full replacement)
if (resolvedCustomPrompt) {
let prompt = resolvedCustomPrompt;
@ -196,7 +183,7 @@ export function buildSystemPrompt(options: BuildSystemPromptOptions = {}): strin
// Append project context files
if (contextFiles.length > 0) {
prompt += "\n\n# Project Context\n\n";
prompt += "The following project context files have been loaded:\n\n";
prompt += "Project-specific instructions and guidelines:\n\n";
for (const { path: filePath, content } of contextFiles) {
prompt += `## ${filePath}\n\n${content}\n\n`;
}
@ -215,6 +202,11 @@ export function buildSystemPrompt(options: BuildSystemPromptOptions = {}): strin
return prompt;
}
// Get absolute paths to documentation and examples
const readmePath = getReadmePath();
const docsPath = getDocsPath();
const examplesPath = getExamplesPath();
// Build tools list based on selected tools
const tools = selectedTools || (["read", "bash", "edit", "write"] as ToolName[]);
const toolsList = tools.length > 0 ? tools.map((t) => `- ${t}: ${toolDescriptions[t]}`).join("\n") : "(none)";
@ -272,12 +264,7 @@ export function buildSystemPrompt(options: BuildSystemPromptOptions = {}): strin
const guidelines = guidelinesList.map((g) => `- ${g}`).join("\n");
// Build prompt with static prefix + dynamic parts
const piPath = getPiPath();
let prompt = `${PI_STATIC_INSTRUCTIONS}
Pi path:
pi-internal:// refers to paths in ${piPath}
let prompt = `You are an expert coding assistant operating inside pi, a coding agent harness. You help users by reading files, executing commands, editing code, and writing new files.
Available tools:
${toolsList}
@ -285,7 +272,14 @@ ${toolsList}
In addition to the tools above, you may have access to other custom tools depending on the project.
Guidelines:
${guidelines}`;
${guidelines}
Pi documentation (only when the user asks about pi itself, its SDK, extensions, themes, skills, or TUI):
- Main documentation: ${readmePath}
- Additional docs: ${docsPath}
- Examples: ${examplesPath} (extensions, custom tools, SDK)
- When asked to create: custom models/providers (README.md), extensions (docs/extensions.md, examples/extensions/), themes (docs/theme.md), skills (docs/skills.md), TUI components (docs/tui.md - has copy-paste patterns)
- When working on pi topics, read the docs and examples, and follow .md cross-references before implementing`;
if (appendSection) {
prompt += appendSection;
@ -294,7 +288,7 @@ ${guidelines}`;
// Append project context files
if (contextFiles.length > 0) {
prompt += "\n\n# Project Context\n\n";
prompt += "The following project context files have been loaded:\n\n";
prompt += "Project-specific instructions and guidelines:\n\n";
for (const { path: filePath, content } of contextFiles) {
prompt += `## ${filePath}\n\n${content}\n\n`;
}