pudo-code-system pudo-api.instructions.md

A set of coding instructions for backend, application-programming-interface, database, authentication, and permission changes. It follows a Plan, Understand, Develop, Optimize workflow.

In plain words
What is it for?
Reviewing backend patterns, adding API or database changes, preserving permissions, and running tests, linting, and type checks before submission.
Why use it?
It helps keep existing interfaces and security rules intact while requiring tests, checks, and notes for risky database changes.

Instructions file for GitHub Copilot

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/dongduong2001/pudo-code-system/pudo-api
Clone the repo
git clone --depth 1 https://github.com/DongDuong2001/pudo-code-system

Made for: GitHub Copilot.

Per session 182 This file is loaded in full into every session.
When invoked 182 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
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 $0.00182 $0.00182
Opus 5 $0.00091 $0.00091
Sonnet 5 $0.00036 $0.00036
Haiku 4.5 $0.00018 $0.00018

Measured yesterday against content hash 0bed504975b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

pudo-code-system pudo-api.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 yesterday.

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.

templates/copilot-cloud-agent/.github/instructions/pudo-api.instructions.md · 34 lines

What it actually says

Backend Code Guidelines

Follow PUDO workflow: Plan -> Understand -> Develop -> Optimize.

API Changes

  • Inspect existing API patterns and route structure before editing.
  • Preserve API contracts and response formats.
  • Keep request validation at trust boundaries.
  • Document breaking changes in the PR description.

Database Changes

  • Treat migrations as release-risk changes.
  • Preserve existing model conventions.
  • Check queryset performance and N+1 risks.
  • Add rollback notes for database changes.

Authentication & Permissions

  • Inspect auth middleware before adding endpoints.
  • Preserve existing permission patterns.
  • Add security review for auth/data changes.

Verification

Run before submitting:

  • npm test or project-specific test command
  • API integration tests if available
  • Lint and type checks
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. yesterday First seen · 34 lines · 182 tokens per session scan A 0bed504975b9

Subscribe to this mod's changes

pudo-code-system pudo-api.instructions.md is an instructions file published in the GitHub repository DongDuong2001/pudo-code-system (5 stars, last pushed 25d ago), licensed MIT. It adds 182 tokens to every session, about $0.0009 per session on Opus 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.