preflight

preflight is a skill for Claude Code from comp4020-agentic-coding-studio/core. It costs 90 tokens per session (2,089 once invoked), scanned A, original, no licence file.

A course skill that checks whether a COMP4020 or COMP8020 project is ready to submit. It checks the local repository, GitHub, the assignment brief and specification, and—when required—the deployed website.

In plain words
What is it for?
Use it before a critique or assignment submission when you need to check that your work is actually submittable.
Why use it?
It finds missing commits, incorrect project requirements, deployment problems, and unreachable websites before the deadline.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: model in frontmatter.

Part of the comp4020 plugin — 11 skills shipped together

Good fit Use it before a critique or assignment submission when you need to check that your work is actually submittable.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/comp4020-agentic-coding-studio/core/preflight
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 comp4020-agentic-coding-studio/core --skill preflight
Clone the repo
git clone --depth 1 https://github.com/comp4020-agentic-coding-studio/core

Made for: Claude Code.

Or install comp4020, the plugin that ships this one along with the rest of its 11 skills.

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 preflight

README.md
[![agentmods](https://agentmods.dev/badge/skills/comp4020-agentic-coding-studio/core/preflight/github.svg)](https://agentmods.dev/skills/comp4020-agentic-coding-studio/core/preflight)
Your own site
<a href="https://agentmods.dev/skills/comp4020-agentic-coding-studio/core/preflight"><img src="https://agentmods.dev/badge/skills/comp4020-agentic-coding-studio/core/preflight/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 preflight

Your own site · 80×15
<a href="https://agentmods.dev/skills/comp4020-agentic-coding-studio/core/preflight"><img src="https://agentmods.dev/badge/skills/comp4020-agentic-coding-studio/core/preflight.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 90 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,089 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 unknown 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 $0.00090 $0.02089
Opus 5.5 $0.00036 $0.00836
Sonnet 5.5 $0.00018 $0.00418
Haiku 4.5 $0.00009 $0.00209

Measured 17d ago against content hash 4463fe05404b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

preflight 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 17d 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.

comp4020/skills/preflight/SKILL.md · 153 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

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. 17d ago Changed · +6 lines 4463fe05404b
  2. 1mo ago Changed · +3 lines 725691753962
  3. 1mo ago Changed · +6 lines c08f21d7cc03
  4. 1mo ago First seen · 138 lines · 90 tokens per session scan A d516f746d05c

Subscribe to this mod's changes

preflight is a skill published in the GitHub repository comp4020-agentic-coding-studio/core (2 stars, last pushed 3d ago), with no licence file. It adds 90 tokens to every session and 2,089 once invoked, about $0.0004 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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