operator-review

An automated review guide for Kubernetes operators, which are programs that manage Kubernetes resources. It checks Go code against project conventions for ownership, reconciliation, security settings, resource limits, and error handling.

In plain words
What is it for?
Use it after changing Go files under components/operator/ to review OwnerReferences, not-found and transient errors, status updates, security contexts, resource limits, and panic usage.
Why use it?
It catches common operator mistakes that can leave child resources unmanaged, cause incorrect retries, weaken security, or hide failures.

Agent for Claude Code

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/ambient-code/platform/operator-review
Clone the repo
git clone --depth 1 https://github.com/ambient-code/platform

Made for: Claude Code.

Per session 37 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 912 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 $0.00037 $0.00912
Opus 5 $0.00018 $0.00456
Sonnet 5 $0.00007 $0.00182
Haiku 4.5 $0.00004 $0.00091

Measured yesterday against content hash 58abe0199db2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

operator-review 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 yesterday.

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.

.claude/agents/operator-review.md · 124 lines

How it starts

The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Operator Review Agent

Review operator Go code against documented conventions.

Context

Load these files before running checks:

  1. specs/standards/control-plane/conventions.spec.md
  2. specs/standards/backend/k8s-client.spec.md
  3. specs/standards/backend/error-handling.spec.md

Checks

O1: OwnerReferences on child resources (Blocker)

# Find client.Create calls (handles multi-line builder chains)
rg -U "\.Create\s*\(" components/operator/ --glob="*.go" -l
# Then for each file, check whether OwnerReferences is set before Create
rg "OwnerReferences|controllerutil\.SetControllerReference" components/operator/ --glob="*.go"

For each Create( call in components/operator/, verify the created object's metadata.OwnerReferences is populated (or controllerutil.SetControllerReference is called) in the same function. See DEVELOPMENT.md for the required pattern.

O2: Proper reconciliation patterns (Critical)

  • errors.IsNotFound → return nil (resource deleted, don't retry)
  • Transient errors → return error (triggers requeue with backoff)
  • Terminal errors → update CR status to "Failed", return nil
# Find IsNotFound usages — verify they return nil, not an error
rg -n "errors\.IsNotFound" components/operator/ --glob="*.go" -A 2
# Find status updates that set Failed but still return errors (bad pattern: should return nil)
rg -U "status.*Failed|Failed.*status" components/operator/ --glob="*.go" -A 3
# Find Reconcile/reconcile functions for manual review of error return paths
rg -n "^func.*[Rr]econcile" components/operator/ --glob="*.go"

O3: SecurityContext on Job pod specs (Critical)

grep -rn "SecurityContext" components/operator/ --include="*.go" | grep -v "_test.go"

Required: AllowPrivilegeEscalation: false, Capabilities.Drop: ["ALL"]

O4: Resource limits/requests on containers (Major)

grep -rn "Resources\|Limits\|Requests" components/operator/ --include="*.go" | grep -v "_test.go"

Read the full file on GitHub · 124 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. yesterday First seen · 124 lines · 37 tokens per session scan A 58abe0199db2

Subscribe to this mod's changes

operator-review is an agent published in the GitHub repository ambient-code/platform (129 stars, last pushed 2d ago), licensed MIT. It adds 37 tokens to every session and 912 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.

Related

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