plan-forge: Instructions file for GitHub Copilot

.github/instructions/clean-code.instructions.md

plan-forge clean-code.instructions.md is an instructions file for GitHub Copilot from srnichols/plan-forge. It costs 1,959 tokens per session, scanned A, original, MIT.

Code-quality rules for functions, names, comments, and review checks, based on common clean-code practices.

In plain words
What is it for?
They help developers split large functions, choose clear names, avoid magic numbers, reduce complexity, and check changes before merging.
Why use it?
They make code easier to read and maintain by limiting excessive size, complexity, nesting, parameters, duplication, and hidden side effects.

Instructions file for GitHub Copilot

Written for GitHub Copilot: a Copilot instructions file.

This is srnichols/plan-forge's own configuration. It tells GitHub Copilot how to work on plan-forge 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 plan-forge configures →

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is const src = readFileSync(join(__dirname, "../orchestrator/sdk-worker.mjs"), "utf8");.

Reuse

Borrowing it

Nothing to install: this file belongs to srnichols/plan-forge. 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/srnichols/plan-forge/master/.github/instructions/clean-code.instructions.md
Clone the repo
git clone --depth 1 https://github.com/srnichols/plan-forge

Made for: GitHub Copilot.

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Per session 1,959 This file is loaded in full into every session.
When invoked 1,959 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 $0.01959 $0.01959
Opus 5.5 $0.00784 $0.00784
Sonnet 5.5 $0.00392 $0.00392
Haiku 4.5 $0.00196 $0.00196

Measured 11d ago against content hash fcbb5ac90240, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

plan-forge clean-code.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 11d 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/instructions/clean-code.instructions.md · 165 lines

How it starts

The opening of the file, as written. The whole thing — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Clean Code Guardrails

Derived from the Phase 42 Clean-Code Audit (27 findings, 6 categories). Full catalog: docs/plans/cleanup-findings/CATALOG.md


When writing a function

Rule Threshold Action
Length ≤100 lines (warn) / ≤300 lines (error) Extract helpers; split by single responsibility
Complexity ≤12 paths (warn) / ≤20 paths (error) Flatten conditionals; extract guard clauses
Parameters ≤4 positional (warn) / ≤6 (error) Wrap excess args in an options object
Nesting depth ≤3 levels Invert conditions; extract inner blocks

Checks before merging a function change:

  • Function does exactly one thing (name is a verb phrase, single concern)
  • No positional parameter list longer than 4 — use { a, b, c } destructuring
  • No magic numbers — assign to a named const at module scope
  • No side effects beyond the function's stated contract
  • ESLint complexity-error and max-lines-per-function-error must be zero

When naming

  • Modules / files: noun, kebab-case (cost-service.mjs, not cs.mjs)
  • Functions: verb phrase, reveals intent (buildEstimate, not calc)
  • Variables: noun, camelCase; boolean prefixed is / has / can
  • Constants: UPPER_SNAKE for true compile-time literals; camelCase const for runtime values
  • Enums / frozen arrays: import from pforge-mcp/enums.mjs — never hand-type string literals
  • Avoid: data, info, result, tmp, val, single letters outside loop indices

When commenting

  • Comment why, not what — the code shows what; the comment explains why it had to be this way
  • Delete commented-out code; use git for history
  • JSDoc only on exported API surfaces; inline comments are a last resort
  • Do NOT leave TODO / FIXME / HACK markers — create a tracked issue instead
  • console.log must be intentional CLI output; remove debug leakage before committing

When you spot duplication (DRY)

Read the full file on GitHub · 165 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. 11d ago Changed · +4 lines · +144 tokens per session fcbb5ac90240
  2. 1mo ago Changed · +32 lines · +315 tokens per session 5301930fe91a
  3. 1mo ago First seen · 129 lines · 1,500 tokens per session scan A 99308c389ea9

Subscribe to this mod's changes

plan-forge clean-code.instructions.md is an instructions file published in the GitHub repository srnichols/plan-forge (6 stars, last pushed today), licensed MIT. It adds 1,959 tokens to every session, about $0.0078 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.

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