delivery-efficiency

delivery-efficiency is a skill for Claude Code, Codex from samibs/skillfoundry. It costs 34 tokens per session (169 once invoked), scanned A, original, MIT.

A set of rules for deciding how much checking a code change needs before delivery. It uses risk, existing evidence, and the size of the change to set a validation budget.

In plain words
What is it for?
Choosing scoped tests, reusing still-valid checks, deciding when to investigate further, and stopping once a change is proven correct.
Why use it?
It reduces unnecessary engineering work while requiring extra checks for high-risk areas such as security, migrations, deployment, and financial logic.

Skill for Claude CodeCodex

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

Good fit Choosing scoped tests, reusing still-valid checks, deciding when to investigate further, and stopping once a change is proven correct.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/samibs/skillfoundry/delivery-efficiency
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 samibs/skillfoundry --skill delivery-efficiency
Clone the repo
git clone --depth 1 https://github.com/samibs/skillfoundry

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 delivery-efficiency

README.md
[![agentmods](https://agentmods.dev/badge/skills/samibs/skillfoundry/delivery-efficiency.svg)](https://agentmods.dev/skills/samibs/skillfoundry/delivery-efficiency)
Your own site
<a href="https://agentmods.dev/skills/samibs/skillfoundry/delivery-efficiency"><img src="https://agentmods.dev/badge/skills/samibs/skillfoundry/delivery-efficiency.svg" alt="Measured on agentmods" height="20"></a>
Per session 34 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 169 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 $0.00034 $0.00169
Opus 5 $0.00017 $0.00084
Sonnet 5 $0.00007 $0.00034
Haiku 4.5 $0.00003 $0.00017

Measured yesterday against content hash ffdd3eaa2820, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

delivery-efficiency 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 yesterday.

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/delivery-efficiency/SKILL.md · 18 lines

What it actually says

Delivery Efficiency

Canonical policy: agents/_delivery-efficiency.md. Read it rather than inferring the rules.

Do not perform more engineering activity than is necessary to prove the requested change correct. Classify a delivery budget (LOW / MEDIUM / HIGH), consume shared mission context before rediscovering it, reuse validation evidence that is still valid for this exact repository state, scope tests to the change, escalate only with evidence, and stop once the change is proven.

Authentication, authorization, secrets, cryptography, migrations, deployment, and financial or compliance logic always classify HIGH; their required checks are never skipped.

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. yesterday First seen · 18 lines · 34 tokens per session scan A ffdd3eaa2820

Subscribe to this mod's changes

delivery-efficiency is a skill published in the GitHub repository samibs/skillfoundry (12 stars, last pushed 2d ago), licensed MIT. It adds 34 tokens to every session and 169 once invoked, about $0.0002 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 2026-09-06.

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