update-llms

update-llms is a skill for Claude Code from tuliosousapro/SaaS-blueprint. It costs 36 tokens per session (1,688 once invoked), scanned A, original, MIT.

A skill for updating an existing llms.txt file, a plain-text guide that helps language models find and understand a repository's important documentation and structure.

In plain words
What is it for?
Use it after editing repository documentation or specifications to review the current llms.txt, inspect the repository structure, and update the guide.
Why use it?
It keeps that guide aligned with changes to repository details, specifications, and documentation so agents can navigate the project correctly.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the SaaS-blueprint plugin — 14 skills shipped together

Good fit Use it after editing repository documentation or specifications to review the current llms.txt, inspect the repository structure, and update the guide.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/tuliosousapro/saas-blueprint/update-llms
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 tuliosousapro/SaaS-blueprint --skill update-llms
Clone the repo
git clone --depth 1 https://github.com/tuliosousapro/SaaS-blueprint

Made for: Claude Code.

Or install SaaS-blueprint, the plugin that ships this one along with the rest of its 14 skills.

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 update-llms

README.md
[![agentmods](https://agentmods.dev/badge/skills/tuliosousapro/saas-blueprint/update-llms/github.svg)](https://agentmods.dev/skills/tuliosousapro/saas-blueprint/update-llms)
Your own site
<a href="https://agentmods.dev/skills/tuliosousapro/saas-blueprint/update-llms"><img src="https://agentmods.dev/badge/skills/tuliosousapro/saas-blueprint/update-llms/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 update-llms

Your own site · 80×15
<a href="https://agentmods.dev/skills/tuliosousapro/saas-blueprint/update-llms"><img src="https://agentmods.dev/badge/skills/tuliosousapro/saas-blueprint/update-llms.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,688 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 $0.00036 $0.01688
Opus 5 $0.00018 $0.00844
Sonnet 5 $0.00007 $0.00338
Haiku 4.5 $0.00004 $0.00169

Measured 10d ago against content hash 8d50de3298d0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

update-llms 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 10d 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/update-llms/SKILL.md · 217 lines

How it starts

The opening of the file, as written. The whole thing — 217 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Update LLMs.txt File

Update the existing llms.txt file in the root of the repository to reflect changes in documentation, specifications, or repository structure. This file provides high-level guidance to large language models (LLMs) on where to find relevant content for understanding the repository's purpose and specifications.

Primary Directive

Update the existing llms.txt file to maintain accuracy and compliance with the llms.txt specification while reflecting current repository structure and content. The file must remain optimized for LLM consumption while staying human-readable.

Analysis and Planning Phase

Before updating the llms.txt file, you must complete a thorough analysis:

Step 1: Review Current File and Specification

  • Read the existing llms.txt file to understand current structure
  • Review the official specification at https://llmstxt.org/ to ensure continued compliance
  • Identify areas that may need updates based on repository changes

Step 2: Repository Structure Analysis

  • Examine the current repository structure using appropriate tools
  • Compare current structure with what's documented in existing llms.txt
  • Identify new directories, files, or documentation that should be included
  • Note any removed or relocated files that need to be updated

Step 3: Content Discovery and Change Detection

  • Identify new README files and their locations
  • Find new documentation files (.md files in /docs/, /spec/, etc.)
  • Locate new specification files and their purposes
  • Discover new configuration files and their relevance
  • Find new example files and code samples
  • Identify any changes to existing documentation structure

Step 4: Create Update Plan

Based on your analysis, create a structured plan that includes:

  • Changes needed to maintain accuracy
  • New files to be added to the llms.txt
  • Outdated references to be removed or updated
  • Organizational improvements to maintain clarity

Implementation Requirements

Format Compliance

The updated llms.txt file must maintain this exact structure per the specification:

Read the full file on GitHub · 217 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. 10d ago First seen · 217 lines · 36 tokens per session scan A 8d50de3298d0

Subscribe to this mod's changes

update-llms is a skill published in the GitHub repository tuliosousapro/SaaS-blueprint (4 stars, last pushed 10d ago), licensed MIT. It adds 36 tokens to every session and 1,688 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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