tailor-core

tailor-core is a skill for Claude Code, Codex from AmanKtyr/Tailor. It costs 48 tokens per session (1,331 once invoked), scanned A, original, MIT.

A core software-engineering framework that organizes work around written specifications, project rules and memory, reuse of existing code, and ordered implementation tasks. Spec-driven development means defining requirements and a plan before building.

In plain words
What is it for?
Use its commands to set project rules, write feature specifications, create plans and task lists, initialize projects, and implement planned work with tests.
Why use it?
It gives coding agents a consistent process for deciding what to build, reusing suitable code, and verifying changes while limiting unnecessary additions.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/amanktyr/tailor/tailor-core
Any agent
npx skills add AmanKtyr/Tailor --skill tailor-core
Clone the repo
git clone --depth 1 https://github.com/AmanKtyr/Tailor

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 tailor-core

README.md
[![agentmods](https://agentmods.dev/badge/skills/amanktyr/tailor/tailor-core.svg)](https://agentmods.dev/skills/amanktyr/tailor/tailor-core)
Your own site
<a href="https://agentmods.dev/skills/amanktyr/tailor/tailor-core"><img src="https://agentmods.dev/badge/skills/amanktyr/tailor/tailor-core.svg" alt="Measured on agentmods" height="20"></a>
Per session 48 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,331 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00048 $0.01331
Opus 5 $0.00024 $0.00665
Sonnet 5 $0.00010 $0.00266
Haiku 4.5 $0.00005 $0.00133

Measured 5d ago against content hash f52fd1945cb5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

tailor-core 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 5d 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.

skills/tailor-core/SKILL.md · 97 lines

How it starts

The opening of the file, as written. The whole thing — 97 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tailor Core — Agent Operational Contract

You are operating under the Tailor software engineering framework.

Core Directive: "Make the code fit the project — with zero waste."


1. Universal Slash Command Router

When slash commands are triggered by the user or upstream agents, route execution to the corresponding specialized skill:

Slash Command Primary Action Target Skill Key Artifact Generated / Modified
/constitution Review or edit project non-negotiables & intensity spec-driven-dev .ai/CONSTITUTION.md
/spec-new <feature> Scaffold user stories, scope, and edge cases spec-driven-dev specs/<id>-<name>/spec.md
/spec-plan <id> Generate reuse-aware technical architecture plan spec-driven-dev + reuse-first specs/<id>-<name>/plan.md
/spec-tasks <id> Generate ordered, complexity-classified tasks spec-driven-dev specs/<id>-<name>/tasks.md
/spec-implement <id> Execute tasks sequentially with verified tests spec-driven-dev + testing Production Source Code
/init-project Product discovery, stack matrix, and ADR setup project-init .ai/ Memory Hierarchy
/analyze-project Index frameworks, components, and symbol catalog tailor-core + reuse-first AST In-Memory Catalog
/review Multi-dimensional quality, security, and reuse review review Structured Review Findings
/security-audit Static vulnerability, credential leak, and OWASP scan security Security Findings Report
/dependency-check <pkg> Evaluate package for bloat, redundancy, and license dependency-governance + pragmatism Package Governance Verdict
/update-project-memory Synchronize .ai/ files with active codebase reality project-memory Updated .ai/*.md Files

2. The 7-Step Pragmatism Ladder (Mandatory Priority)

Before writing any new implementation or adding dependencies, navigate down this ladder and STOP at the first level that solves the requirement:

Read the full file on GitHub · 97 lines

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. 5d ago First seen · 97 lines · 48 tokens per session scan A f52fd1945cb5

Subscribe to this mod's changes

tailor-core is a skill published in the GitHub repository AmanKtyr/Tailor (3 stars, last pushed 13d ago), licensed MIT. It adds 48 tokens to every session and 1,331 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 2026-08-31.

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