software-engineering-excellence

software-engineering-excellence is a skill for Claude Code, Codex from frostney/pascal-mcp-sdk. It costs 56 tokens per session (631 once invoked), scanned A, original, MIT.

A set of engineering standards for planning, building, debugging, reviewing, refactoring, and investigating software. It emphasises current evidence, complete in-scope fixes, reuse, validation, and maintainable changes.

In plain words
What is it for?
Use it when making or reviewing substantial code changes, investigating defects, planning work, or choosing between implementation approaches.
Why use it?
It helps prevent quick fixes that only hide symptoms, unnecessary architecture, and claims that were not tested. It keeps technical work focused on the real problem and its important success and failure paths.

Skill for Claude CodeCodex

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 skills/frostney/pascal-mcp-sdk/software-engineering-excellence
Any agent
npx skills add frostney/pascal-mcp-sdk --skill software-engineering-excellence
Clone the repo
git clone --depth 1 https://github.com/frostney/pascal-mcp-sdk

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 software-engineering-excellence

README.md
[![agentmods](https://agentmods.dev/badge/skills/frostney/pascal-mcp-sdk/software-engineering-excellence.svg)](https://agentmods.dev/skills/frostney/pascal-mcp-sdk/software-engineering-excellence)
Your own site
<a href="https://agentmods.dev/skills/frostney/pascal-mcp-sdk/software-engineering-excellence"><img src="https://agentmods.dev/badge/skills/frostney/pascal-mcp-sdk/software-engineering-excellence.svg" alt="Measured on agentmods" height="20"></a>
Per session 56 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 631 The whole file, excluding the scripts and references it only reads on demand.
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 $0.00056 $0.00631
Opus 5 $0.00028 $0.00316
Sonnet 5 $0.00011 $0.00126
Haiku 4.5 $0.00006 $0.00063

Measured 4d ago against content hash 38c3fedeacb4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

software-engineering-excellence 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 4d 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/skills/software-engineering-excellence/SKILL.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Software engineering excellence

Leave the system more maintainable and the next change easier. Prefer the smallest complete solution at the right layer: neither a symptom-hiding diff nor speculative architecture.

Working standard

  1. Ground in current reality. Read applicable instructions, source, project-defined commands, primary specifications, and durable decisions. Treat issue text, comments, tests, docs, and prior notes as leads until verified. Run the named reproduction or artifact when possible, then act.
  2. Reuse by meaning. Search for existing helpers, patterns, definitions, and vocabulary. Reuse when semantics match; do not abstract merely similar shapes.
  3. Solve the complete in-scope problem. Cover real success, failure, and state-transition paths. Fix blockers that invalidate the requested result; report unrelated findings without absorbing them into scope.
  4. Validate the real bar. Observe every claimed pass, number, behavior, and action in the current run. Reproduce defects when possible, add meaningful regression coverage, and run the repository's relevant gate. Never weaken a gate to obtain green output.
  5. Make every surface earn its cost. Add only code, tests, fallbacks, abstractions, or tools with a real caller, requirement, or failure mode. Remove unused surfaces.
  6. Respect authority boundaries. Diagnosis, review, and planning authorize assessment; change requests authorize reversible in-scope implementation and relevant validation. Pause only for a material product, architecture, security, compatibility, or scope choice that evidence cannot resolve.

For genuinely multi-layer work, establish a thin runnable path and deepen it in increments. Validate material performance changes against a relevant baseline. Follow the surrounding code's comment density and idiom; explain non-obvious decisions.

Evidence and communication

Ground progress and completion in current source or tool evidence. Report material outcomes, limitations, and blockers without narrating routine activity. Finish with the outcome first and enough evidence for a reader who did not see the work trace.

Read the full file on GitHub · 64 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. 4d ago First seen · 64 lines · 56 tokens per session scan A 38c3fedeacb4

Subscribe to this mod's changes

software-engineering-excellence is a skill published in the GitHub repository frostney/pascal-mcp-sdk (2 stars, last pushed 8d ago), licensed MIT. It adds 56 tokens to every session and 631 once invoked, about $0.0003 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.

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