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Workspace Baseline — AI Agent Instructions

Purpose: Template catalog of reusable Copilot MD files (agents, prompts, instructions, skills) for bootstrapping new coding projects. Root folders are the authoritative library; .github/ is a downstream consumer. See README.md for full catalog contents, tech stack coverage, and repository structure.

Development Constraints

  • OS: Windows + WSL
  • No local Python/Node — use Docker isolation for Python and Node.js tooling
  • Package management: Bundled lib/ for PowerShell modules, npm for JS build only

Hard Rules

  1. Root is authoritative — all templates originate in root folders; .github/ draws from root
  2. Instruction frontmatter must include description and applyTo fields
  3. Agent frontmatter must include description and name fields
  4. MCP tools are mandatory for external knowledge — never guess API signatures or version numbers
  5. Subagent delegation — use subagents for 3+ file research or complex multi-step tasks
  6. Update README.md — when adding, removing, or renaming agents, prompts, instructions, or skills, update the corresponding table in the root README.md to keep the catalog accurate
  7. Record significant decisions as ADRs — structural changes, new conventions, philosophy shifts, or technology additions must be captured in docs/adr/ using the ADR template
  8. Sanitize community templates — files sourced from awesome-copilot or other external repositories must be reviewed and made project- and tech-agnostic where appropriate; tech-specific templates (e.g., a PHP agent) may retain their specificity but must not contain project-specific references

Template Authoring Standards

When creating or modifying templates in this baseline:

Naming Conventions

Type Pattern Example
Instructions {technology}.instructions.md powershell-pester-5.instructions.md
Instructions (testing) tests-{framework}.instructions.md tests-pester.instructions.md
Agents {purpose}.agent.md tdd-red.agent.md
Prompts {workflow}.prompt.md workon.myspec.prompt.md
Skills {name}/SKILL.md copilot-sdk/SKILL.md

Quality Checklist

  • Frontmatter follows conventions (description, applyTo/name)
  • File targets user's tech stack or is truly universal
  • No project-specific references (namespace, constitution principle numbers)
  • Code examples are technology-appropriate
  • MCP tool references are correct (tool names, parameter patterns)
  • Authoritative version exists in root catalog
  • If sourced externally: reviewed for project-specific contamination and made tech-agnostic where the template is not inherently technology-specific
  • README.md tables updated if catalog contents changed
  • ADR created in docs/adr/ if this is a significant decision or convention change

Documentation Requirements

All documentation lives in the docs/ folder. Keep it current as the library evolves.

Area Path When to update
Architecture docs/architecture/ New structural patterns, design overviews, or system diagrams
ADRs docs/adr/ Any significant decision: new conventions, philosophy changes, technology additions, structural reorganization
Development docs/development/ Workflow changes, iteration logs, contributing guidelines
Prompt Craft docs/prompt-craft/ Prompt experiments, lessons learned, refined techniques

README Maintenance

The root README.md is the first thing visitors and AI agents read. When catalog contents change:

  • Added a template? → Add it to the matching What's Inside table (Instructions / Agents / Prompts / Skills)
  • Removed or renamed? → Update or remove the entry
  • New tech stack? → Update the Tech Stack Coverage section
  • New docs area? → Add a row to the Docs table

ADR Workflow

  1. Create a new file in docs/adr/ named NNNN-short-title.md (zero-padded sequence number)
  2. Follow the template in docs/adr/README.md (Title, Status, Context, Decision, Consequences)
  3. Update the index table in docs/adr/README.md
  4. Set status to Proposed initially — change to Accepted once confirmed

MCP Tools (Required for External Knowledge)

Need Tool
PowerShell/.NET patterns mcp_microsoftdocs_microsoft_docs_search
Library/framework docs mcp_context7_resolve-library-id → mcp_context7_get-library-docs
Current versions/APIs mcp_brave-search_brave_web_search
Discover community MD files mcp_awesome-copil_search_instructions / mcp_awesome-copil_search_agents
Complex reasoning mcp_sequential-th_sequentialthinking (min 3 thoughts)