What is agent-advisor?

An AWS planning assistant for AI agents, which are software systems that can carry out tasks using AI. It helps choose where an agent should run, plan a move for an existing workload, and build a working proof of concept.

Use it to compare AWS runtimes, plan an AI-agent migration, or create an executable proof of concept.

Choosing among AWS services such as Lambda, ECS, EKS, or AgentCore can be difficult when team size, budget, workload, and experience differ. This tool adapts its questions and recommendation to those startup conditions.

agent-advisor — Skill for Claude Code by awslabs/startups

About the project

AWS Startups is an official AWS repository containing plugins, skills, tools, and other resources for people building startup products on Amazon Web Services. Its add-ons support startup-focused architecture, migration, and development work on AWS.

awslabs/startups · 24 stars · on GitHub

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code

/plugin marketplace add awslabs/startups

Claude Code

/plugin install aws-startup-advisor

Made for: Claude Code.

Or install aws-startup-advisor, the plugin that ships this one along with the rest of its 11 skills, 7 agents, 1 hook, 1 MCP server.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/awslabs/startups/agent-advisor/github.svg)](https://agentmods.dev/skills/awslabs/startups/agent-advisor)

Your own site

<a href="https://agentmods.dev/skills/awslabs/startups/agent-advisor"><img src="https://agentmods.dev/badge/skills/awslabs/startups/agent-advisor/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/awslabs/startups/agent-advisor"><img src="https://agentmods.dev/badge/skills/awslabs/startups/agent-advisor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 560 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 4,459 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 88% 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.

Model	Per session	Once invoked
Fable 5.1	$0.00560	$0.04459
Opus 5.5	$0.00224	$0.01784
Sonnet 5.5	$0.00112	$0.00892
Haiku 4.5	$0.00056	$0.00446

Measured 23d ago against content hash 465b75b33bb8, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

agent-advisor 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 23d ago.

The scan reads SKILL.md. This mod also ships 4 executable files (scripts/anthropic_model_recommendation.py, scripts/build_diagram.py, scripts/model_recommendation.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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

88% identical to agent-advisor — 9 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.

advisor/plugins/aws-startup-advisor/skills/agent-advisor/SKILL.md · 210 lines

How it starts

The opening of the file, as written. The whole thing — 210 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AWS Agent Advisor

Helps startups decide how and where to run AI agents on AWS. Deterministic scoring recommends a runtime; the conversation adapts to the user's technical background. For AgentCore microVMs, default to V2 without a version-preference question; check applicability and retain V1 only for an evidenced exception. Design and POC load references/decision-refs/agentcore-platform.md for this policy.

Definitions

"Load" = Read the file with the Read tool and follow it. Do not summarize or skip.
$RUN_DIR = the run directory under .agent-advisor/ (e.g. .agent-advisor/0630-1430/), created in Intake.
$PLUGIN = ${CLAUDE_PLUGIN_ROOT} (the installed plugin root). On Claude Code this token substitutes inline. If ${CLAUDE_PLUGIN_ROOT} does not resolve (some Cursor/Codex builds, or a literal ${CLAUDE_PLUGIN_ROOT} string showing up in a path error), fall back to the skill's own directory: this SKILL.md lives at <plugin>/skills/agent-advisor/SKILL.md, so the engine and its data are all inside this skill — scripts at ./scripts/..., runtime profiles at ./references/runtimes/..., and decision refs at ./references/decision-refs/... relative to it. Prefer ${CLAUDE_PLUGIN_ROOT}/skills/agent-advisor/...; use the relative fallback only when it fails to resolve.

Prerequisites

uv available (for scoring). Check: uv --version. If missing, tell the user to install it from the official install guide (https://docs.astral.sh/uv/getting-started/installation/ — e.g. brew install uv or pipx install uv) and stop.

Phase Structure (frontmatter)

Phase, fragment, and assembler files carry a YAML frontmatter block that declares how each phase is composed — its inputs, triggers, fragments, assembler, artifacts, gates, and ordering. The execution contract is the vendored references/vendored/dsl/INTERPRETER.md: it defines every frontmatter key, the fragment/assembler model, the gate protocol (HANDOFF_OK / GATE_FAIL), and the interpreter loop. Load it first (once, at the start of a run), then execute each phase file's prose body. Elsewhere in this skill, INTERPRETER.md (without a path) refers to this loaded contract.

Read the full file on GitHub · 210 lines

Files

What ships with it

60 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.

23d ago Changed · +3 lines 465b75b33bb8
24d ago Changed cd2b3d43dcbe
1mo ago Changed · +18 lines 924a87fb7268
1mo ago First seen · 189 lines · 560 tokens per session scan A b93a50d71c2d

Subscribe to this mod's changes

agent-advisor is a skill published in the GitHub repository awslabs/startups (24 stars, last pushed 12d ago), licensed Apache-2.0. It adds 560 tokens to every session and 4,459 once invoked, about $0.0022 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 88% identical to agent-advisor, differing in 9 lines, and is treated as a copy.

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