Sqs Queue Auditor Agent Skill

Audit a single AWS SQS queue's configuration for the misconfigurations that silently drop or re-deliver messages while every attribute…

Context cost
76.1k tokensestimated from the bundle, loaded when it triggers
Bundle
43 files · 359.2 kB12 scripts among them — read before you run
Licence
Apache-2.0the author’s own terms
Last change
—no release on file
Servers it uses
Noneruns standalone

What it does

Audit a single AWS SQS queue's configuration for the misconfigurations that silently drop or re-deliver messages while every attribute reads as fine. Parses the GetQueueAttributes output (and the referenced dead-letter queue), checks the redrive path (DLQ present, maxReceiveCount band, DLQ-vs-source retention ordering), the message lifecycle (poison messages aging out before they reach the DLQ, default visibility timeout, short retention), and exposure (open resource policy, encryption at rest, FIFO dedup contract).

What this skill changes about the agent has not been set out here as a list. Its SKILL.md, shown below, says it in the author’s own words.

awscloud
Filed under

Cloud & DevOps

The skill itself

A skill is instructions the model reads, so you can see what you are getting: below is the start of its SKILL.md. The front matter loads with every session, the body loads when the skill triggers, and the whole file comes with the install.

SKILL.md13.6 kB · preview
--- name: sqs-queue-auditor ---
6# sqs-queue-auditor
7
8Configuration-audit skill for a single AWS SQS queue. Takes the GetQueueAttributes output for one queue, applies the judgment a senior engineer applies to that one source (the thresholds, the known-bad combinations, the one arithmetic relationship that turns a correct-looking config into silent message loss), and returns a ranked list of findings with recommendations. Then it names exactly where a single queue's configuration stops being able to answer the question.
9
10## When to invoke
11
12- An agent is asked to review, harden, or sanity-check an SQS queue before or after it ships.
13- Messages are going missing or being processed twice and nobody can see why from the console.
14- A dead-letter queue is configured but empty during an incident, and the question is whether it is actually wired to catch what is failing.
15- A queue is being added to a Terraform module or a CDK stack and the config should be checked against the known-bad combinations before apply.
16
17## What this skill reads, and what it does not
18
19It reads the static configuration of **one queue**, plus the attributes of the **dead-letter queue that queue's own RedrivePolicy points at**. Both are SQS control-plane reads (GetQueueAttributes). That is the entire input. The audit is correct and complete *for what a queue's configuration can tell you*, and it is explicit about the rest:
20
21- It does **not** read CloudWatch. Live behaviour (redrive volume, age of the oldest message, in-flight count, empty-receive rate) is a time-series, not an attribute.
22- It does **not** read the consumers. Whether the visibility timeout is actually long enough is a property of how long the consumer takes, which is not in the queue.
23- It does **not** read account IAM. The effective set of principals that can act on the queue is the union of the resource policy (visible) and every identity policy in the account (not visible here).
24- It does **not** read the producers. Whether the right services are writing to the queue, and whether anyone is draining the DLQ, needs the inventory on either side.
This is a preview of SKILL.md. Download or install the skill to get the whole thing.
In the file
SKILL.md2,048 words
Files43
LicenceApache-2.0
Why you can read it

Nothing in a skill executes. The client loads the text and the model follows it, so a skill can be audited the way a runbook is — by reading it.

What it costs in context

Skills are not billed by the call. They are paid for in context: every token the instructions occupy is a token your code, your diff and your conversation cannot use. Here is what this one takes and when it takes it.

≈250
always loaded
The name and description, so the model knows the skill exists and when to reach for it.
75,825
on trigger
The instruction body and 42 supporting files, read only when the skill fires.
38.0%
of a 200k window
Ten skills this size would not fit in the window together.
050k100k150k200k context window

76.1k tokens, estimated from the bundle at four bytes to the token, held for the rest of the session once it triggers. Heavy. Teams tend to install this one per project rather than globally, and load it only when the job comes up.

Servers bill, skills cost

A server charges by the month. A skill charges once per session, in context, and then keeps charging it for as long as the session lives.

Before and after

The same question, put to the same model twice: once as it comes, and once with these instructions loaded.

No worked example has been published for this skill yet.

The procedure it runs

The procedure has not been set out here step by step. It is in the body of its SKILL.md: the start of it is shown above, and the whole file comes with the install.

Prose, not code

These steps are written for a model to follow, not executed by a runtime. It can still be told to skip one, and it will say so when it does.

Servers it uses

None. This skill calls no MCP servers at all.

Everything it needs is in the instructions, so it works in a project with nothing connected — the model reads the file and changes how it works with what it can already reach.

Its SKILL.md does not declare which tools it asks the agent for, so what it touches is whatever the instructions themselves ask for — read them before you install it.

What it asks for
Writes filesnot declared
Network accessnot declared

This SKILL.md carries no allowed-tools line, so neither is declared. A skill grants no permissions of its own — it can only ask for tools your client already has.

What it will not do

Every skill is narrow, and the useful ones say where they stop. These are the jobs this one is the wrong tool for.

What this skill is not for has not been published here. Nothing is implied by that: it is a section the author has not filled in.

What is in the bundle

43 files, 359.2 kB on disk. Mostly text — the instructions the model reads — with 12 scripts in it that your client would run only if the instructions tell it to.

  • SKILL.md13.6 kB
  • FAILURE_MODES.md6.8 kB
  • README.md5.0 kB
  • examples/01-no-dlq.md3.0 kB
  • examples/02-dlq-retention-shorter-than-source.md3.4 kB
  • examples/03-maxreceivecount-too-low.md2.9 kB
  • examples/04-poison-ages-out-before-dlq.md3.9 kB
  • examples/05-default-visibility-short-retention.md3.3 kB
  • examples/06-public-queue-policy.md3.6 kB
  • examples/07-fifo-dedup-off.md2.9 kB
  • examples/08-clean-standard.md2.7 kB
  • tests/_audit.py22.4 kB
  • tests/_replay.py0.7 kB
  • tests/README.md4.3 kB
  • tests/replay_01_no_dlq.py1.5 kB
  • tests/replay_02_dlq_retention.py1.6 kB
  • tests/replay_03_maxreceivecount.py1.3 kB
  • tests/replay_04_poison_ages_out.py1.6 kB
  • tests/replay_05_default_visibility.py1.8 kB
  • tests/replay_06_public_policy.py1.4 kB
  • tests/replay_07_fifo_dedup_off.py1.4 kB
  • tests/replay_08_clean_standard.py1.6 kB
  • fixtures/01-no-dlq/queue.json0.6 kB
  • fixtures/02-dlq-retention-shorter-than-source/dlq.json0.6 kB
  • fixtures/02-dlq-retention-shorter-than-source/queue.json0.6 kB
  • fixtures/03-maxreceivecount-too-low/dlq.json0.7 kB
  • fixtures/03-maxreceivecount-too-low/queue.json0.6 kB
  • fixtures/04-poison-ages-out-before-dlq/dlq.json0.7 kB
  • fixtures/04-poison-ages-out-before-dlq/queue.json0.6 kB
  • fixtures/05-default-visibility-short-retention/dlq.json0.7 kB
  • fixtures/05-default-visibility-short-retention/queue.json0.6 kB
  • fixtures/06-public-queue-policy/dlq.json0.7 kB
  • fixtures/06-public-queue-policy/queue.json0.9 kB
  • fixtures/07-fifo-dedup-off/dlq.json0.7 kB
  • fixtures/07-fifo-dedup-off/queue.json0.8 kB
  • fixtures/08-clean-standard/dlq.json0.7 kB
  • fixtures/08-clean-standard/queue.json1.0 kB
  • tests/eval/eval_results.json225.7 kB
  • tests/eval/judge_prompt.md1.4 kB
  • tests/eval/queues.py7.8 kB
  • tests/eval/README.md8.6 kB
  • tests/eval/rubric.md2.7 kB
  • tests/eval/run_eval.py11.8 kB
What is not in it

A skill installs nothing and depends on nothing: it is a folder your client reads. This one carries 12 scripts beside the text, so the bundle is 43 files you can review in full before installing. The Apache-2.0 licence covers the templates and examples as well as the instructions.

Install

Installing copies the bundle into your project. Nothing runs at install time — the files sit on disk until the model reads them.

# Sqs Queue Auditor · 76.1k tokens when loaded · macOS, Linux mkdir -p .claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/sqs-queue-auditor/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/sqs-queue-auditor" ] && { [ ! -e .claude/skills/sqs-queue-auditor ] || { mv .claude/skills/sqs-queue-auditor "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/sqs-queue-auditor" .claude/skills/ && echo "Installed .claude/skills/sqs-queue-auditor"
On Windows, or any OS with Node 20+
npx mcprush@latest skill add anyshift-io/sqs-queue-auditor

Windows PowerShell says 'running scripts is disabled on this system'? Run Set-ExecutionPolicy -Scope CurrentUser RemoteSigned once, or type npx.cmd instead of npx (codex.cmd, gemini.cmd, grok.cmd likewise). PowerShell 7 needs neither. Writes to .claude/skills/sqs-queue-auditor/ in the current project. For every project instead, run mkdir -p ~/.claude/skills && t=$(mktemp -d) && curl -fsSL -o "$t/bundle.tar.gz" https://mcprush.com/api/skills/sqs-queue-auditor/bundle.tar.gz && tar -xzf "$t/bundle.tar.gz" -C "$t" && [ -d "$t/sqs-queue-auditor" ] && { [ ! -e ~/.claude/skills/sqs-queue-auditor ] || { mv ~/.claude/skills/sqs-queue-auditor "$t/.previous" && echo "Previous copy moved to $t/.previous"; }; } && mv "$t/sqs-queue-auditor" ~/.claude/skills/ && echo "Installed ~/.claude/skills/sqs-queue-auditor" (macOS, Linux) — or add --global to the npx line. The curl line replaces .claude/skills/sqs-queue-auditor/ only after the download succeeds, so files left there by another skill of the same name, or by an older release, do not mix in. A copy already there is moved aside, not deleted, and the line prints where.

Which clients pick it up on their own

A skill is a folder of text. Most of these read a skills folder and pick it up without being told; the rest take the same folder another way — an upload in the app, a parameter on an API call — and then choose it by its description just the same.

Claude Code.claude/skills/
Claude DesktopCustomize › Skills
ChatGPTSkills › Create › Upload
Cursor.cursor/skills/
VS Code.github/skills/
Codex CLI.agents/skills/
Gemini CLI.gemini/skills/
Grok Build.grok/skills/
Microsoft CopilotSkills › Upload a skill
PerplexityComputer › Skills › Upload a skill
DeepSeek Harness.dsh/skills/
Zed.agents/skills/
Devin Desktop.devin/skills/
Windsurf (legacy).windsurf/skills/
OpenAI Agents SDKInstructions or sandbox Skills
HTTP / APIa request parameter
This release
Versionnot versioned
Publishedno release date on file
PriceFree
Referenceanyshift-io/sqs-queue-auditor

Versions

Its author publishes no version number, so there is nothing here to pin to: what you install is the folder as it stands today. Instructions change more often than APIs do — a skill can be rewritten entirely without anything it depends on moving.

Pinning

Nothing to pin to: this skill carries no version number of its own. What you install is what the folder holds on the day you install it.

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