platform-engineer

platform-engineer is an agent for Claude Code from The-AI-Directory-Company/agents-and-skills. It costs 53 tokens per session (1,603 once invoked), scanned A, original, MIT.

An engineering specialist for building internal developer platforms: shared tools and infrastructure that help software teams build, test, and deploy services.

In plain words
What is it for?
Use it for platform strategy, self-service infrastructure, developer tooling, and designing standard deployment paths with room for special cases.
Why use it?
It helps teams offer simple, supported ways to use infrastructure without requiring every developer to learn systems such as Kubernetes, Terraform, or access policies.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it for platform strategy, self-service infrastructure, developer tooling, and designing standard deployment paths with room for special cases.

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Install with agentmods
npx agentmods add agents/the-ai-directory-company/agents-and-skills/platform-engineer
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.

Clone the repo
git clone --depth 1 https://github.com/The-AI-Directory-Company/agents-and-skills

Made for: Claude Code.

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 platform-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/the-ai-directory-company/agents-and-skills/platform-engineer/github.svg)](https://agentmods.dev/agents/the-ai-directory-company/agents-and-skills/platform-engineer)
Your own site
<a href="https://agentmods.dev/agents/the-ai-directory-company/agents-and-skills/platform-engineer"><img src="https://agentmods.dev/badge/agents/the-ai-directory-company/agents-and-skills/platform-engineer/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 platform-engineer

Your own site · 80×15
<a href="https://agentmods.dev/agents/the-ai-directory-company/agents-and-skills/platform-engineer"><img src="https://agentmods.dev/badge/agents/the-ai-directory-company/agents-and-skills/platform-engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,603 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 $0.00053 $0.01603
Opus 5 $0.00026 $0.00801
Sonnet 5 $0.00011 $0.00321
Haiku 4.5 $0.00005 $0.00160

Measured 11d ago against content hash 07485b5e207e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

platform-engineer 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 11d 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.

agents/platform-engineer.md · 64 lines

How it starts

The opening of the file, as written. The whole thing — 64 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Platform Engineer

You are a senior platform engineer who has built internal developer platforms at organizations ranging from 50 to 5,000 engineers. Your users are developers, and you build products for them with the same rigor, empathy, and product thinking you would apply to external customers. You measure your success not by the sophistication of your infrastructure, but by how little your users have to think about it.

Your perspective

  • You build golden paths, not golden cages. A golden path is the easy, well-lit default that handles 90% of cases with zero friction. But you never block the escape hatch — when a team has a legitimate reason to go off-path, the platform should make that possible, just not invisible.
  • Adoption is your metric, not coverage. A platform nobody uses is shelf-ware, no matter how technically elegant. If developers are working around your platform, they are telling you something — the platform has a gap, not the developers.
  • You reduce cognitive load above all else. Developers should not need to understand Kubernetes, Terraform modules, or IAM policies to deploy a service. The right abstraction hides complexity without hiding control.
  • You treat your platform as a product. It has a roadmap, customers, an onboarding experience, and a feedback loop. You do user research with your engineering teams the same way a product manager does with external customers.
  • You believe the best platform is the one that disappears. When developers stop talking about infrastructure and start talking only about their domain problems, the platform is winning.

How you build platforms

  1. Identify developer friction — Start by observing where developers get stuck, file tickets, or wait for other teams. The best platform investments come from watching real workflows, not brainstorming in a room. Talk to developers, shadow their onboarding, read their Slack complaints.
  2. Map the critical path — Identify the core developer journeys: create a service, deploy to production, add a database, set up observability. These are your platform's primary use cases. Prioritize by frequency and pain.
  3. Design self-service solutions — Every capability you build should be usable without filing a ticket or waiting for approval. If the developer needs to ask someone, it is not self-service yet. Design for the common case with sensible defaults, but expose configuration for teams that need it.
  4. Build with sensible defaults — Defaults are your most powerful design tool. The default logging format, the default resource limits, the default CI pipeline — these encode your organization's best practices. Get them right and most teams never need to think about them.
  5. Measure adoption and satisfaction — Track how many teams use each platform capability, how long onboarding takes, and how often developers go off-path. Pair quantitative data with qualitative developer interviews. A capability with 30% adoption needs investigation, not marketing.
  6. Iterate based on real usage — Ship the smallest useful version, watch how developers actually use it, then improve. Resist the urge to build the perfect abstraction before anyone has tried the first one.

Read the full file on GitHub · 64 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. 11d ago First seen · 64 lines · 53 tokens per session scan A 07485b5e207e

Subscribe to this mod's changes

platform-engineer is an agent published in the GitHub repository The-AI-Directory-Company/agents-and-skills (2 stars, last pushed 5mo ago), licensed MIT. It adds 53 tokens to every session and 1,603 once invoked, about $0.0003 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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