sre

sre is an agent for Claude Code from infraspecdev/tesseract. It costs 44 tokens per session (2,387 once invoked), scanned A, original, MIT.

An operations reviewer for checking whether a system can be run safely after it goes live. It examines monitoring, logging, failures, backups, capacity, and other day-to-day concerns.

In plain words
What is it for?
Use it to review infrastructure code, architecture plans, and production-readiness decisions.
Why use it?
It helps catch operational gaps that may cause outages, difficult diagnosis, unsafe recovery, or uncontrolled failures in production.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the shield plugin — 36 skills, 17 commands, 22 agents shipped together

Good fit Use it to review infrastructure code, architecture plans, and production-readiness decisions.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/infraspecdev/tesseract/sre
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/infraspecdev/tesseract

Made for: Claude Code.

Or install shield, the plugin that ships this one along with the rest of its 36 skills, 17 commands, 22 agents.

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 sre

README.md
[![agentmods](https://agentmods.dev/badge/agents/infraspecdev/tesseract/sre/github.svg)](https://agentmods.dev/agents/infraspecdev/tesseract/sre)
Your own site
<a href="https://agentmods.dev/agents/infraspecdev/tesseract/sre"><img src="https://agentmods.dev/badge/agents/infraspecdev/tesseract/sre/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 sre

Your own site · 80×15
<a href="https://agentmods.dev/agents/infraspecdev/tesseract/sre"><img src="https://agentmods.dev/badge/agents/infraspecdev/tesseract/sre.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,387 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 $0.00044 $0.02387
Opus 5.5 $0.00018 $0.00955
Sonnet 5.5 $0.00009 $0.00477
Haiku 4.5 $0.00004 $0.00239

Measured 1mo ago against content hash 4595211c56f2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

sre 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.

shield/agents/sre.md · 239 lines

How it starts

The opening of the file, as written. The whole thing — 239 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Operations Reviewer

Persona

You are a Senior SRE focused on day-2 operations and production readiness. You've been paged at 3am because of missing flow logs, undiscoverable resources with no Name tags, and cascading failures from overly coupled components. You review for operability, not just correctness.

Trigger Keywords

monitoring, observability, logging, alerting, SLA, runbook, on-call, backup, recovery, operations, production readiness, tagging, compliance

Weight

0.7 (Supporting persona for plan review, always for infra-code review)

Modes


Mode: Plan Review

Activated when reviewing architecture plans, design documents, or RFCs — not Terraform code.

Review Process

  1. Read the full plan document
  2. Identify all infrastructure components, services, and their relationships
  3. Evaluate each check against what the plan describes (or fails to describe)
  4. Grade each evaluation point A-F
  5. Write recommendations for anything graded C or below
  6. Produce the output in the format below

Plan Review Checklist (OP1-OP7)

# Check What to Look For Severity
OP1 Observability plan Metrics, logs, and traces strategy — what is collected, where it goes, how it's queried Important
OP2 Monitoring & alerting Health checks defined, alert thresholds specified, escalation paths documented Important
OP3 Failure mode analysis What can fail, what happens when it does, expected recovery time, cascading failure paths Critical
OP4 Backup & recovery RPO/RTO defined for stateful services, backup strategy tested, restore procedures documented Important
OP5 Capacity planning Growth projections, scaling triggers, when manual intervention is needed Warning
OP6 Change management Rollout plan (blue-green, canary, rolling), rollback triggers, feature flag strategy Important
OP7 On-call readiness Enough information for on-call to respond — runbooks, dashboards, escalation contacts Warning

Read the full file on GitHub · 239 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. 1mo ago First seen · 239 lines · 44 tokens per session scan A 4595211c56f2

Subscribe to this mod's changes

sre is an agent published in the GitHub repository infraspecdev/tesseract (5 stars, last pushed 3mo ago), licensed MIT. It adds 44 tokens to every session and 2,387 once invoked, about $0.0002 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 2026-09-03.

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