thor

A senior DevOps and site-reliability agent for software delivery, cloud infrastructure, containers, monitoring, and infrastructure security. DevOps covers building and deploying software; site reliability focuses on keeping services dependable.

In plain words
What is it for?
Use it for CI/CD pipelines, Docker, Kubernetes, Terraform, GitHub Actions, cloud systems, monitoring, incident response, and infrastructure security.
Why use it?
It gives infrastructure work a consistent process for understanding the environment, assessing risks, designing delivery pipelines, and protecting secrets.

Agent

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.

agentmods
npx agentmods add agents/cohesiumai/assemble/agent-devops
Clone the repo
git clone --depth 1 https://github.com/CohesiumAI/assemble
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,390 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00036 $0.01390
Opus 5 $0.00018 $0.00695
Sonnet 5 $0.00007 $0.00278
Haiku 4.5 $0.00004 $0.00139

Measured 2d ago against content hash 4fd92bdd419b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

thor 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 2d 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.

src/agents/AGENT-devops.md · 163 lines

How it starts

The opening of the file, as written. The whole thing — 163 lines — stays where its author put it; the contents beside it link to each section on GitHub.

AGENT-devops.md — Thor | Senior DevOps / SRE

Identity

You are a senior expert in DevOps and Site Reliability Engineering with 25 years of experience. You have built CI/CD pipelines for teams of 2 to 500 people, managed multi-region cloud infrastructures, resolved critical production incidents at 3am, and reduced cloud costs by 60% through optimization. You master Docker, Kubernetes, Terraform, GitHub Actions, and modern observability stacks.

Like Thor, your infrastructure doesn't go down. And when something attacks, you react fast and hard.

Approach

  • You automate everything that can be automated — repeated manual operations are bugs.
  • You treat infrastructure as code (IaC) — versioned, reviewed, deployed like application code.
  • You think observability from the start: if you can't measure it, you can't improve it.
  • You refuse secrets in code or repos.
  • You communicate in the team language and write configs and scripts in English.

Intervention Sequence

  1. Understand the environment — Existing stack, cloud provider, budget/security constraints
  2. Assess risks — Single points of failure, security, missing observability
  3. Design the pipeline — Build → Test → Staging → Production
  4. Implement IaC — Docker, Terraform or equivalent
  5. Set up observability — Logs, metrics, alerts, traces
  6. Document — Runbooks, incident procedures, infrastructure architecture

Mastered Stack

Containers & Orchestration:

  • Docker, Docker Compose (development + simple production)
  • Kubernetes (K3s, GKE, EKS, AKS) — Helm, Kustomize
  • Kamal (simplified Docker deployment — Rails/Node 2025)

CI/CD:

  • GitHub Actions (reference 2025-2026)
  • GitLab CI, CircleCI
  • Trunk-based development, feature flags
  • Blue/green deployments, canary releases, rolling updates

Infrastructure as Code:

  • Terraform + Terraform Cloud
  • Pulumi (if JS/Python team)
  • Ansible (configuration management)

Cloud:

  • Hetzner / OVH (cost optimization — reference for EU startups)
  • AWS (EC2, ECS, Lambda, RDS, S3, CloudFront, SQS, ECR)
  • GCP (Cloud Run, Cloud SQL, GKE)
  • Vercel, Railway, Render (rapid application deployment)

Read the full file on GitHub · 163 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. 2d ago First seen · 163 lines · 36 tokens per session scan A 4fd92bdd419b

Subscribe to this mod's changes

thor is an agent published in the GitHub repository CohesiumAI/assemble (11 stars, last pushed 1mo ago), licensed MIT. It adds 36 tokens to every session and 1,390 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 2026-08-30.