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pcl: Instructions file for GitHub Copilot

.github/copilot-instructions.md

pcl copilot-instructions.md is an instructions file for GitHub Copilot from personamanagmentlayer/pcl. It costs 8,233 tokens per session, scanned A, original, Apache-2.0.

Project guidance for PCL, a TypeScript programming language and compiler for managing AI personas. It covers the compiler, runtime, command-line tools, and built-in persona system.

In plain words
What is it for?
Use it when working on PCL’s lexer, parser, type checking, runtime, standard library, CLI, tests, or persona commands.
Why use it?
It gives a coding agent the project’s architecture and design rules before it changes code, reducing misunderstandings across the compiler and runtime.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is personamanagmentlayer/pcl's own configuration. It tells GitHub Copilot how to work on pcl itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything pcl configures →

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is import type { Token } from '../lexer/token';.

not rated 44repo 11d ago A scan 8,233 tokens original Apache-2.0
View source ↗ personamanagmentlayer/pcl pclang.org
Reuse

Borrowing it

Nothing to install: this file belongs to personamanagmentlayer/pcl. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/personamanagmentlayer/pcl/main/.github/copilot-instructions.md
Clone the repo
git clone --depth 1 https://github.com/personamanagmentlayer/pcl

Made for: GitHub Copilot.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

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README.md
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Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

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Per session 8,233 This file is loaded in full into every session.
When invoked 8,233 The same file — it is already loaded in full.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.08233 $0.08233
Opus 5.5 $0.03293 $0.03293
Sonnet 5.5 $0.01647 $0.01647
Haiku 4.5 $0.00823 $0.00823

Measured 2mo ago against content hash a06d709fd1b1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

pcl copilot-instructions.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.github/copilot-instructions.md · 1,383 lines

How it starts

The opening of the file, as written. The whole thing — 1,383 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GitHub Copilot Instructions for PCL (Persona Control Language)

Project Overview

PCL (Persona Control Language) is a domain-specific programming language and compiler for AI persona management. This is a TypeScript-based compiler project that includes:

  • Lexer: Tokenization and scanning
  • Parser: AST generation from tokens
  • Semantic Analysis: Type checking, validation, and symbol resolution
  • Runtime: Execution engine for PCL programs
  • Standard Library: Built-in personas, types, and utilities
  • CLI: Command-line interface for PCL tools

Tech Stack: TypeScript 5.3+, Node.js, ESM modules, Vitest for testing

PCL Bootstrap System

Important: This project includes a PCL-Lite Bootstrap system that enables AI assistants to interpret /persona commands for multi-persona collaboration.

  • Bootstrap File: ../.roadmap/bootstrap/BOOTSTRAP_EN.md
  • Purpose: Embedded runtime v1.0 for AI chat interfaces (ChatGPT, Claude, Gemini, etc.)
  • Personas: 25+ built-in personas (ARCHI, SEC, DEV, DEVOPS, CRITIC, etc.) with specialized skills
  • Commands: 120+ /persona commands for activation, composition, teams, workflows, and more
  • Domain Focus: Standardization personas (STANDARD_ARCHITECT, SPEC_EDITOR, COMPLIANCE_ENGINEER, etc.)

When working on PCL code generation, reference the bootstrap specification to understand the target runtime behavior and persona system that PCL compiles to.

Key Bootstrap Concepts:

  • Persona Activation: /persona [id] - Activate a persona with specialized capabilities
  • Team Composition: /team [id] - Load pre-configured teams (e.g., security-review, dream-team, standardization)
  • Shared Skills: Personas inherit foundation, technical, security, architecture, standards, and tools skills
  • Merge Modes: primary, consensus, weighted, sequential, parallel for multi-persona responses
  • Workflow Orchestration: Define and execute multi-step workflows with persona handoffs

Read the full file on GitHub · 1,383 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 1,383 lines · 8,233 tokens per session scan A a06d709fd1b1

Subscribe to this mod's changes

pcl copilot-instructions.md is an instructions file published in the GitHub repository personamanagmentlayer/pcl (44 stars, last pushed 11d ago), licensed Apache-2.0. It adds 8,233 tokens to every session, about $0.0329 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

LLMLanguagesTypeScriptanthropicclaudedeepseekgeminigenerative-ai
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