pseudocode-to-specification

pseudocode-to-specification is a skill for Claude Code, Codex from DauQuangThanh/hanoi-rainbow. It costs 114 tokens per session (2,539 once invoked), scanned A, original, MIT.

A tool that reads pseudocode, algorithms, or code snippets and turns them into functional and business specifications. It documents what a system does, including inputs, outputs, rules, data, workflows, and assumptions, rather than how it is programmed.

In plain words
What is it for?
Use it to document business behavior, functional requirements, data requirements, workflows, preconditions, postconditions, and business rules from existing logic.
Why use it?
It helps turn informal logic into requirements that product and engineering teams can review. It also highlights missing context, unclear rules, and undefined error cases.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it to document business behavior, functional requirements, data requirements, workflows, preconditions, postconditions, and business rules from existing logic.

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Install with agentmods
npx agentmods add skills/dauquangthanh/hanoi-rainbow/pseudocode-to-specification
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.

Any agent
npx skills add DauQuangThanh/hanoi-rainbow --skill pseudocode-to-specification
Clone the repo
git clone --depth 1 https://github.com/DauQuangThanh/hanoi-rainbow

Made for: Claude Code, Codex.

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.

agentmods badge for pseudocode-to-specification

README.md
[![agentmods](https://agentmods.dev/badge/skills/dauquangthanh/hanoi-rainbow/pseudocode-to-specification/github.svg)](https://agentmods.dev/skills/dauquangthanh/hanoi-rainbow/pseudocode-to-specification)
Your own site
<a href="https://agentmods.dev/skills/dauquangthanh/hanoi-rainbow/pseudocode-to-specification"><img src="https://agentmods.dev/badge/skills/dauquangthanh/hanoi-rainbow/pseudocode-to-specification/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.

agentmods 80×15 button for pseudocode-to-specification

Your own site · 80×15
<a href="https://agentmods.dev/skills/dauquangthanh/hanoi-rainbow/pseudocode-to-specification"><img src="https://agentmods.dev/badge/skills/dauquangthanh/hanoi-rainbow/pseudocode-to-specification.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 114 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,539 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00114 $0.02539
Opus 5 $0.00057 $0.01269
Sonnet 5 $0.00023 $0.00508
Haiku 4.5 $0.00011 $0.00254

Measured 10d ago against content hash 98d32264e8e5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

pseudocode-to-specification 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 10d 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.

skills/pseudocode-to-specification/SKILL.md · 387 lines

How it starts

The opening of the file, as written. The whole thing — 387 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pseudocode to Specification

Extract functional requirements and business specifications from pseudocode, algorithms, or code snippets.

Core Workflow

1. Analyze Pseudocode

Parse structure, control flow, and identify:

  • Inputs, outputs, and data transformations
  • Variables, constants, and data structures
  • Algorithms and logic patterns
  • Assumptions and implicit requirements

Ask for clarification on:

  • Ambiguous variable names or operations
  • Missing context about data sources/destinations
  • Unclear business rules or constraints
  • Undefined error handling or edge cases

2. Extract Functional Requirements

Document core business functionality as requirements:

FR-001: [Function Name]
Business Purpose: [Why this function exists]
Description: System shall [action] when [condition]
Inputs: [business data, parameters, context]
Processing Logic: [business rules and decision steps]
Outputs: [business results, side effects]
Business Rules: [constraints, validations, calculations]
Preconditions: [required business state]
Postconditions: [resulting business state]

For detailed requirement patterns: requirements-patterns.md

3. Extract Business Data Requirements

Identify business entities and their requirements:

  • Business entities and their meaning
  • Business attributes and their purpose
  • Business constraints and validation rules
  • Business relationships between entities
  • Data lifecycle and state transitions

Document as:

Business Entity: [EntityName]
Business Meaning: [What this represents]
Attributes:
  - name: [Business meaning, constraints]
  - field: [Business purpose, validation rules]
Relationships:
  - [Business relationship] with [OtherEntity]
  - Cardinality: [min..max]
Business Rules:
  - [Business constraint or invariant]
Lifecycle States:
  - [State] → [State] when [condition]

4. Document Business Workflow and Logic

Analyze business process flow:

  • Sequential business operations
  • Business decision points and conditions
  • Iterative business processes
  • Business exception paths
  • Business event triggers

Read the full file on GitHub · 387 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 10d ago First seen · 387 lines · 114 tokens per session scan A 98d32264e8e5

Subscribe to this mod's changes

pseudocode-to-specification is a skill published in the GitHub repository DauQuangThanh/hanoi-rainbow (16 stars, last pushed 7mo ago), licensed MIT. It adds 114 tokens to every session and 2,539 once invoked, about $0.0006 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.