contract-acquisition

contract-acquisition is a skill for Claude Code, Codex from eugenelim/agent-ready-repo. It costs 218 tokens per session (5,055 once invoked), scanned A, original, Apache-2.0.

A method for checking the real rules of an unfamiliar platform, command-line tool, runtime, or software library before using it.

In plain words
What is it for?
Use it before deploying, configuring infrastructure, invoking a new tool, or coding against an unfamiliar framework or library.
Why use it?
It reduces errors caused by guessed commands, options, data formats, names, version details, or function signatures.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents); mentions AGENTS.md.

Good fit Use it before deploying, configuring infrastructure, invoking a new tool, or coding against an unfamiliar framework or library.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/eugenelim/agent-ready-repo/contract-acquisition
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 eugenelim/agent-ready-repo --skill contract-acquisition
Clone the repo
git clone --depth 1 https://github.com/eugenelim/agent-ready-repo

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 contract-acquisition

README.md
[![agentmods](https://agentmods.dev/badge/skills/eugenelim/agent-ready-repo/contract-acquisition/github.svg)](https://agentmods.dev/skills/eugenelim/agent-ready-repo/contract-acquisition)
Your own site
<a href="https://agentmods.dev/skills/eugenelim/agent-ready-repo/contract-acquisition"><img src="https://agentmods.dev/badge/skills/eugenelim/agent-ready-repo/contract-acquisition/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 contract-acquisition

Your own site · 80×15
<a href="https://agentmods.dev/skills/eugenelim/agent-ready-repo/contract-acquisition"><img src="https://agentmods.dev/badge/skills/eugenelim/agent-ready-repo/contract-acquisition.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 218 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,055 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Prompt Injection · line 57
    Hidden instructions were detected in comments or invisible text. These could contain malicious directives. Manual review is recommended.
    Fix: Audit all comments and invisible characters. Remove any instructions that direct the agent to perform unauthorized actions. Use plain, reviewable content.
  • medium Memory Poisoning · line 158
    Skill attempts to fill the context window with filler content, displacing legitimate instructions and safety constraints. This can degrade agent performance or bypass safety boundaries.
    Fix: Implement context-window management that detects and rejects padding or stuffing attempts. Prioritize system instructions over user-injected content.
How audits are shown
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 $0.00218 $0.05055
Opus 5 $0.00109 $0.02527
Sonnet 5 $0.00044 $0.01011
Haiku 4.5 $0.00022 $0.00505

Measured 11d ago against content hash 7b6b8f481442, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

contract-acquisition scanned grade A with 1 finding 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

| **weak / none — infra** | bespoke REST + `curl`, hand-rolled bare-metal provisioning, an undocumented internal API | no trustworthy static oracle | **declare weak; shift weight to the runtime probe** — do not invent st
.agents/skills/contract-acquisition/SKILL.md · 305 lines

How it starts

The opening of the file, as written. The whole thing — 305 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Skill: contract-acquisition

This skill answers one question before you author anything against a platform or library you don't know cold: what is its real contract — the flag set, resource schema, naming and immutability rules, and packaging model of a platform; the versioned signatures, deprecations, and call-order / lifecycle constraints of a library — and where does that contract come from? The field-report failures this closes were not reasoning failures; they were contract failures: invented CLI flags, a violated naming regex, a wrong tool-schema shape, an immutable-field collision, a managed-runtime import model guessed wrong — and, on the software side, a non-existent signature, a removed keyword argument, a wrong return type, a call against a deprecated API. The fix is not to memorize more clouds or more libraries. It is to drive the toolchain's own deterministic oracles — the validate / plan / schema tools a stack ships, the type checker / compiler / introspection a language ships — and to ground authoring in what they return, declaring honestly how strong that oracle is.

This is the generalization of AGENTS.md's "Grep to verify a function exists before importing it": don't guess a flag, a schema field, a constraint, a signature, or a packaging assumption when the toolchain can tell you the truth deterministically. The bare grep confirms a symbol exists; this skill confirms its contract.

The four-way carve — who owns which infra question. Four distinct questions, four owners; keep the lines clean both ways.

  • contract-acquisition (this skill)is the IaC / invocation correct against the platform's structural contract? (Does this flag exist, this field accept this value, this resource name match the regex, this property is immutable?)
  • cloud-implementation-craft (an operational-safety module) — will the call path even succeed? under-permissioning, timing / eventual-consistency, retry / cold-start, dependency ordering, packaging.
  • security-checklistsis this too open? over-permissioning and security config (IAM blast radius, public exposure, secrets in state).
  • the policy-as-code / CSPM scanneris the config against policy? per-provider secure-config baselines from vendor-maintained rulesets.

A leaked credential is security-checklists; an under-scoped role that makes the call fail is cloud-implementation-craft; a non-existent flag or an immutable-field collision is this skill.

The four owners above are the infra-question owners. The software surface — an unfamiliar framework / library's contract (signatures, deprecations, call-order / lifecycle) — also rides this skill, across the same tiered protocol (T0 version → T1 type-checker / introspection oracle → T2 curated skill → T3 versioned docs → runtime probe), not just one tier.

Read the full file on GitHub · 305 lines

Files

What ships with it

1 file 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. 11d ago First seen · 305 lines · 218 tokens per session scan A 7b6b8f481442

Subscribe to this mod's changes

contract-acquisition is a skill published in the GitHub repository eugenelim/agent-ready-repo (21 stars, last pushed today), licensed Apache-2.0. It adds 218 tokens to every session and 5,055 once invoked, about $0.0011 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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