What is own-planner copilot-instructions.md?

Repository guidance for OwnPlanner, a .NET application with a web interface, command-line tool, and MCP tool server. It explains the project structure, architecture, and database migration rules.

Use it when modifying OwnPlanner’s domain logic, services, database layer, web server, React frontend, command-line tool, MCP server, or documentation.

It gives coding agents the project rules they need before changing different parts of the codebase, reducing inconsistent changes and missed validation steps.

How am-space/own-planner configures GitHub Copilot

Reuse

Borrowing it

Nothing to install: this file belongs to am-space/own-planner. 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/am-space/own-planner/master/.github/copilot-instructions.md

Clone the repo

git clone --depth 1 https://github.com/am-space/own-planner

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.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/am-space/own-planner/copilot-instructions/github.svg)](https://agentmods.dev/instructions/am-space/own-planner/copilot-instructions)

Your own site

<a href="https://agentmods.dev/instructions/am-space/own-planner/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/am-space/own-planner/copilot-instructions/github.svg" alt="Measured on agentmods" height="20"></a>

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.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/am-space/own-planner/copilot-instructions"><img src="https://agentmods.dev/badge/instructions/am-space/own-planner/copilot-instructions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 823 This file is loaded in full into every session.

When invoked 823 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.

Model	Per session	Once invoked
Fable 5.1	$0.00823	$0.00823
Opus 5.5	$0.00329	$0.00329
Sonnet 5.5	$0.00165	$0.00165
Haiku 4.5	$0.00082	$0.00082

Measured 2mo ago against content hash a5c35f090b53, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

own-planner 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 · 74 lines

How it starts

The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.

OwnPlanner Copilot Instructions

AGENTS.md is the canonical source for shared repository guidance. Keep this Copilot-specific view aligned when repository-wide conventions change. Read the closest nested AGENTS.md before changing Infrastructure, MCP tools, the web server, the web client, or documentation; it contains the component's implementation and validation rules.

Repository overview

OwnPlanner is a layered .NET 10 solution with multiple entry points:

OwnPlanner.Domain: entities and business rules
OwnPlanner.Application: use-cases, services, DTOs, orchestration
OwnPlanner.Infrastructure: persistence, SQLite, adapters, external integrations
OwnPlanner.Web/OwnPlanner.Web.Server: ASP.NET Core web server and API
OwnPlanner.Web/ownplanner.web.client: React + TypeScript + Vite frontend
OwnPlanner.Console: CLI entry point
OwnPlanner.Mcp.StdioApp: MCP stdio host for tool execution

Architecture documentation

For more details on the system's design, please refer to the following documents:

docs/architecture-layers.md: Details the 4-layer clean architecture.
docs/ai-integration.md: Explains the chat workflow and MCP tool execution.
docs/database-schema.md: Details the SQLite separation scheme.

General rules

Follow existing repository style, naming, and folder conventions.
Keep changes minimal and scoped to the requested task.
Never commit directly to master; create a dedicated task branch first. Unless the user specifies another name, use feature/<short-description> for enhancements and fix/<short-description> for bug fixes.
Keep unrelated staged or working-tree changes out of task commits.
Do not introduce placeholder comments, TODO-only implementations, or incomplete code.
Avoid breaking public contracts unless explicitly requested.
Prefer existing abstractions, helpers, and services over introducing new patterns.
Preserve nullability annotations and existing async APIs.
Keep parameter ordering consistent across similar APIs.
When adding a new interface or modifying an existing one, add or update XML documentation comments for the interface and its members to explain intent, contracts, and usage expectations.

Read the full file on GitHub · 74 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.

2mo ago First seen · 74 lines · 823 tokens per session scan A a5c35f090b53

Subscribe to this mod's changes

own-planner copilot-instructions.md is an instructions file published in the GitHub repository am-space/own-planner (2 stars, last pushed 1mo ago), licensed MIT. It adds 823 tokens to every session, about $0.0033 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 2026-08-31.

C# and .NET LLM architecture dotnet mcp-client mcp-server

own-planner copilot-instructions.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
own-planner copilot-instructions.mdam-space/own-planner	Instructions file	2	1mo ago	MIT	A	823	GitHub Copilot
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next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

own-planner: Instructions file for GitHub Copilot