trellis-spec-bootstarp

trellis-spec-bootstarp is a skill for Claude Code, Codex from tincopper/neeko. It costs 70 tokens per session (551 once invoked), scanned A, a copy of trellis-spec-bootstrap, Apache-2.0.

A workflow for creating or updating Trellis specifications, meaning project-specific documents that describe how a codebase is structured and should be changed.

In plain words
What is it for?
It analyzes the repository, divides documentation by real packages or layers when appropriate, writes examples and anti-patterns with file paths, and checks the finished specifications.
Why use it?
It replaces generic guidance with rules based on the actual repository, reducing placeholder documentation and mismatches with the existing code.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It analyzes the repository, divides documentation by real packages or layers when appropriate, writes examples and anti-patterns with file paths, and checks the finished specifications.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tincopper/neeko/trellis-spec-bootstarp
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 tincopper/neeko --skill trellis-spec-bootstarp
Clone the repo
git clone --depth 1 https://github.com/tincopper/neeko

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 trellis-spec-bootstarp

README.md
[![agentmods](https://agentmods.dev/badge/skills/tincopper/neeko/trellis-spec-bootstarp/github.svg)](https://agentmods.dev/skills/tincopper/neeko/trellis-spec-bootstarp)
Your own site
<a href="https://agentmods.dev/skills/tincopper/neeko/trellis-spec-bootstarp"><img src="https://agentmods.dev/badge/skills/tincopper/neeko/trellis-spec-bootstarp/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 trellis-spec-bootstarp

Your own site · 80×15
<a href="https://agentmods.dev/skills/tincopper/neeko/trellis-spec-bootstarp"><img src="https://agentmods.dev/badge/skills/tincopper/neeko/trellis-spec-bootstarp.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 70 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 551 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 92% copy Near-identical to another mod 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 $0.00070 $0.00551
Opus 5 $0.00035 $0.00275
Sonnet 5 $0.00014 $0.00110
Haiku 4.5 $0.00007 $0.00055

Measured 9d ago against content hash 81f400092b21, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

trellis-spec-bootstarp 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 9d 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.

Origin

This is a copy

92% identical to trellis-spec-bootstrap — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

.omp/skills/trellis-spec-bootstarp/SKILL.md · 42 lines

How it starts

The opening of the file, as written. The whole thing — 42 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Trellis Spec Bootstarp

Use this skill to create or refresh .trellis/spec/ guidelines from the real codebase. One capable agent owns the full loop: analyze the repository, choose the spec boundaries, write the docs, and verify the result. The workflow does not depend on a specific host, CLI, or agent brand.

Workflow

  1. Confirm Trellis is initialized and inspect the current .trellis/spec/ tree.
  2. Analyze the repository architecture with the best available tools: GitNexus, ABCoder, language tooling, and direct source reads.
  3. Decompose the spec work by package and layer only when that reflects the actual codebase.
  4. Fill or reshape the spec files with concrete patterns, file paths, examples, and anti-patterns from the project.
  5. Verify that the final specs are internally consistent and contain no template placeholders.

Reference Routing

Need Read
Repository architecture analysis references/repository-analysis.md
Spec work decomposition and task planning references/spec-task-planning.md
Writing high-signal Trellis spec files references/spec-writing.md
GitNexus and ABCoder MCP setup references/mcp-setup.md

Operating Rules

  • Treat templates as starting points, not contracts. Delete, rename, split, or add spec files when the repository calls for it.
  • Prefer source-backed rules over generic advice. Every important recommendation should point at a real file or repeated local pattern.
  • Keep execution single-owner by default. Optional helper agents are an implementation detail, not a requirement or user-visible dependency.
  • Do not write platform-specific instructions unless the target project already standardizes on that platform.
  • Do not leave placeholder text, empty headings, or copied boilerplate in .trellis/spec/.

Done Criteria

  • .trellis/spec/ describes the project as it exists now.
  • Each relevant package or layer has practical coding guidance with real examples.
  • Non-applicable template sections are removed.
  • index.md files match the final spec file set.
  • Any required setup or analysis assumptions are documented in the relevant spec or task notes.

Read the full file on GitHub · 42 lines

Files

What ships with it

4 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. 9d ago First seen · 42 lines · 70 tokens per session scan A 81f400092b21

Subscribe to this mod's changes

trellis-spec-bootstarp is a skill published in the GitHub repository tincopper/neeko (11 stars, last pushed yesterday), licensed Apache-2.0. It adds 70 tokens to every session and 551 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to trellis-spec-bootstrap, differing in 4 lines, and is treated as a copy.

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