lenserfight: Skill for Codex

.agents/skills/feature-slice-designer/SKILL.md

feature-slice-designer is a skill for Codex from conectlens/lenserfight. It costs 52 tokens per session (170 once invoked), scanned A, original, MIT.

A planning method for deciding where a new feature belongs in a monorepo, a code repository containing multiple related projects or libraries.

In plain words
What is it for?
Use it before implementing features or refactors to assign domain, data, user-interface, and integration work to specific files and libraries.
Why use it?
It breaks cross-layer work into clear responsibilities when the right library or boundary is uncertain.

Skill for Codex

Written for Codex: agents/openai.yaml present. Also seen: installed under .agents/ (shared by several agents).

This is conectlens/lenserfight's own configuration. It tells Codex how to work on lenserfight itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything lenserfight configures →

Reuse

Borrowing it

Nothing to install: this file belongs to conectlens/lenserfight. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/conectlens/lenserfight/main/.agents/skills/feature-slice-designer/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/conectlens/lenserfight

Made for: 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 feature-slice-designer

README.md
[![agentmods](https://agentmods.dev/badge/skills/conectlens/lenserfight/feature-slice-designer.svg)](https://agentmods.dev/skills/conectlens/lenserfight/feature-slice-designer)
Your own site
<a href="https://agentmods.dev/skills/conectlens/lenserfight/feature-slice-designer"><img src="https://agentmods.dev/badge/skills/conectlens/lenserfight/feature-slice-designer.svg" alt="Measured on agentmods" height="20"></a>
Per session 52 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 170 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 $0.00052 $0.00170
Opus 5 $0.00026 $0.00085
Sonnet 5 $0.00010 $0.00034
Haiku 4.5 $0.00005 $0.00017

Measured 8d ago against content hash 1ef4638e9357, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

feature-slice-designer 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 8d 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/feature-slice-designer/SKILL.md · 20 lines

What it actually says

Feature Slice Designer

Use when

  • a new feature spans multiple layers
  • the correct target library is unclear
  • scope must be decomposed before implementation

Workflow

  1. Translate the request into domain, data, UI, and integration responsibilities.
  2. Assign each responsibility to the correct library or create a justified new boundary.
  3. Return a file-level implementation plan, public APIs, and constraints.

Load only when needed

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. 8d ago First seen · 20 lines · 52 tokens per session scan A 1ef4638e9357

Subscribe to this mod's changes

feature-slice-designer is a skill published in the GitHub repository conectlens/lenserfight (18 stars, last pushed 29d ago), licensed MIT. It adds 52 tokens to every session and 170 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 2026-08-30.