extend-agentproto

extend-agentproto is a skill for Claude Code, Codex from agentproto/ts. It costs 68 tokens per session (302 once invoked), scanned A, original, Apache-2.0.

A set of procedures for extending an agent platform with reusable applications, multi-stage workflows, external tool connections, command-line adapters, authentication profiles, and agent packs.

In plain words
What is it for?
It helps build reusable agent apps, session pipelines, external MCP integrations, CLI adapters, model settings, and packs of agents or knowledge.
Why use it?
Adding agent capabilities involves choosing between several integration patterns and making them work together. These procedures map common extension jobs to the platform's supported building blocks.

Skill for Claude CodeCodex

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

Good fit It helps build reusable agent apps, session pipelines, external MCP integrations, CLI adapters, model settings, and packs of agents or knowledge.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/agentproto/ts/extend-agentproto
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 agentproto/ts --skill extend-agentproto
Clone the repo
git clone --depth 1 https://github.com/agentproto/ts

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 extend-agentproto

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/agentproto/ts/extend-agentproto"><img src="https://agentmods.dev/badge/skills/agentproto/ts/extend-agentproto.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 68 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 302 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 $0.00068 $0.00302
Opus 5.5 $0.00027 $0.00121
Sonnet 5.5 $0.00014 $0.00060
Haiku 4.5 $0.00007 $0.00030

Measured 1mo ago against content hash 68d92d20dd56, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

extend-agentproto 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 1mo 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.

packages/skill-pack-agentproto/src/skills/extend-agentproto/SKILL.md · 26 lines

What it actually says

extend-agentproto

Make the platform do new things. Each row names the primitive or playbook that owns the mechanics; open it for tool signatures and recipes.

I want to… Open
Bundle agents+workflows+UI as an APP ap-apps, then pb-build-app
Build multi-stage session pipelines ap-workflows
Register and call external MCP servers ap-import-mcp
Install agent CLI adapters ap-adapters
Add auth profiles / harness presets ap-models-auth
Author and import agent PACKS (company/agency/knowledge) pb-build-pack

Surface choice in one line: MCP tools for interactive ops, the agentproto CLI for long-lived processes, plain HTTP GETs for cheap checks.

Start here if the capability should be reusable and self-contained: it is an APP (ap-apps → pb-build-app). If it is a one-off multi-session run, it is a workflow (ap-workflows).

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. 1mo ago First seen · 26 lines · 68 tokens per session scan A 68d92d20dd56

Subscribe to this mod's changes

extend-agentproto is a skill published in the GitHub repository agentproto/ts (10 stars, last pushed yesterday), licensed Apache-2.0. It adds 68 tokens to every session and 302 once invoked, about $0.0003 per session on Opus 5.5. 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 2026-09-04.

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