finding-seams

finding-seams is a skill for Claude Code from citypaul/.dotfiles. It costs 99 tokens per session (2,148 once invoked), scanned A, original, no licence file.

A method for finding substitution points in code whose dependencies are difficult to replace. These points, called seams, let tests use alternatives to real databases, services, globals, or tightly connected collaborators.

In plain words
What is it for?
Use it to identify test seams around direct object creation, static or global calls, external systems, and singleton access.
Why use it?
It helps make legacy or tightly coupled code testable without first rewriting the whole system. It reveals where dependencies can be separated safely.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

Good fit Use it to identify test seams around direct object creation, static or global calls, external systems, and singleton access.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/citypaul/.dotfiles/finding-seams
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 citypaul/.dotfiles --skill finding-seams
Clone the repo
git clone --depth 1 https://github.com/citypaul/.dotfiles

Made for: Claude Code.

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 finding-seams

README.md
[![agentmods](https://agentmods.dev/badge/skills/citypaul/.dotfiles/finding-seams/github.svg)](https://agentmods.dev/skills/citypaul/.dotfiles/finding-seams)
Your own site
<a href="https://agentmods.dev/skills/citypaul/.dotfiles/finding-seams"><img src="https://agentmods.dev/badge/skills/citypaul/.dotfiles/finding-seams/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 finding-seams

Your own site · 80×15
<a href="https://agentmods.dev/skills/citypaul/.dotfiles/finding-seams"><img src="https://agentmods.dev/badge/skills/citypaul/.dotfiles/finding-seams.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 99 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,148 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 $0.00099 $0.02148
Opus 5 $0.00049 $0.01074
Sonnet 5 $0.00020 $0.00430
Haiku 4.5 $0.00010 $0.00215

Measured 7d ago against content hash 8fa6b37698b4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

finding-seams 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 7d 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.

claude/.claude/skills/finding-seams/SKILL.md · 134 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 7d ago Changed · +11 lines 8fa6b37698b4
  2. 11d ago First seen · 123 lines · 99 tokens per session scan A 8e750849d11c

Subscribe to this mod's changes

finding-seams is a skill published in the GitHub repository citypaul/.dotfiles (730 stars, last pushed yesterday), with no licence file. It adds 99 tokens to every session and 2,148 once invoked, about $0.0005 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.

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