own-planner: Instructions file for Codex

AGENTS.md

own-planner AGENTS.md is an instructions file for Codex, OpenCode from am-space/own-planner. It costs 2,290 tokens per session, scanned A, original, MIT.

Repository instructions for OwnPlanner, a personal planning assistant with a .NET backend, a React and TypeScript web interface, and per-user SQLite data.

In plain words
What is it for?
Use them when changing task, note, goal, or context management; the chat interface; backend or frontend code; tests; or local startup scripts.
Why use it?
They explain the project’s two technology stacks and verification commands, helping the coding agent test only the relevant area or the whole application.

Instructions file for CodexOpenCode

Written for Codex and OpenCode: the file is AGENTS.md. Also seen: mentions AGENTS.md; mentions Codex.

This is am-space/own-planner's own configuration. It tells Codex and OpenCode how to work on own-planner 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 own-planner configures →

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/AGENTS.md
Clone the repo
git clone --depth 1 https://github.com/am-space/own-planner

Made for: Codex, OpenCode.

Wrote this? Show the measurements

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README.md
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Per session 2,290 This file is loaded in full into every session.
When invoked 2,290 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 $0.02290 $0.02290
Opus 5.5 $0.00916 $0.00916
Sonnet 5.5 $0.00458 $0.00458
Haiku 4.5 $0.00229 $0.00229

Measured 1mo ago against content hash e4eed3ec5b3d, 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 AGENTS.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 1mo 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.

AGENTS.md · 162 lines

How it starts

The opening of the file, as written. The whole thing — 162 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENTS.md

This file provides guidance to Codex (Codex.ai/code) when working with code in this repository.

Overview

OwnPlanner is an AI-powered personal planning assistant: a layered .NET 10 solution with a React + TypeScript (Vite, MUI) frontend. Users chat with a Google Gemini LLM that invokes in-process MCP-style tools to manage tasks, notes, goals, and contexts stored in per-user SQLite databases.

Common commands

Run from the repo root unless noted.

# Install/restore dependencies, then run the full local CI-equivalent verification
./scripts/setup.sh
./scripts/verify.sh

# Verify only one stack
./scripts/verify.sh --backend
./scripts/verify.sh --frontend

# Single test project, class, or method
dotnet test --project OwnPlanner.Application.Tests/OwnPlanner.Application.Tests.csproj
dotnet test --project OwnPlanner.Domain.Tests --filter-class "OwnPlanner.Domain.Tests.Tasks.TaskItemTests"
dotnet test --project OwnPlanner.Domain.Tests --filter-method "*Ctor_Valid_SetsProperties"

# Run the web server (auto-launches the Vite dev server via SpaProxy)
dotnet run --project OwnPlanner.Web/OwnPlanner.Web.Server   # http://localhost:5079

# Run the console chat loop (type `exit` to quit)
dotnet run --project OwnPlanner.Console

Frontend (from OwnPlanner.Web/ownplanner.web.client/):

npm ci
npm run dev      # Vite dev server
npm run build    # tsc -b && vite build
npm run lint     # eslint

CI (.github/workflows/ci.yml) uses the same scripts: scripts/setup.sh, then frontend and backend verification. Run ./scripts/verify.sh before pushing to match both verification paths locally.

Git workflow

  • Never commit directly to master.
  • Before the first task commit, create or switch to a dedicated branch. 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.
  • Open a pull request targeting master when the work is ready for review.

Read the full file on GitHub · 162 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. 1mo ago Changed · +25 tokens per session e4eed3ec5b3d
  2. 1mo ago Changed · +31 lines · +497 tokens per session fc5bd3f0d32d
  3. 2mo ago First seen · 131 lines · 1,768 tokens per session scan A 9a1fb289cecf

Subscribe to this mod's changes

own-planner AGENTS.md is an instructions file published in the GitHub repository am-space/own-planner (2 stars, last pushed 1mo ago), licensed MIT. It adds 2,290 tokens to every session, about $0.0092 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.

Related

own-planner AGENTS.md compared with instructions from other repositories

own-planner AGENTS.md next to 6 instructions from other repositories
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own-planner AGENTS.mdam-space/own-plannerInstructions file21mo agoMITA2,290Codex, OpenCode
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vscode oss-third-party-notices.instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA5,516GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscodeInstructions file195kyesterdayMITA3,093GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harnessInstructions file274k2d agoMITA4,313Codex, OpenCode