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gopherstack: Skill for Claude Code

.claude/skills/gopherstack-map/SKILL.md

gopherstack-map is a skill for Claude Code from BlackbirdWorks/gopherstack. It costs 139 tokens per session (2,493 once invoked), scanned A, original, MIT.

A project map for the gopherstack Go repository, which emulates AWS services for local use. It records where services, shared packages, tests, command-line wiring, and the web interface live.

In plain words
What is it for?
Use it to locate an AWS service, find its supported operations, inspect routing and parity information, or identify relevant tests and shared packages.
Why use it?
It removes repeated searching through a large repository before making a change. It helps an agent start in the right directory and understand how the parts fit together.

Skill for Claude Code

Written for Claude Code: installed under .claude/. Also seen: reads .claude/ paths.

This is BlackbirdWorks/gopherstack's own configuration. It tells Claude Code how to work on gopherstack itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything gopherstack configures →

not rated 17repo yesterday A scan 139 tokens original MIT
View source ↗ BlackbirdWorks/gopherstack
Reuse

Borrowing it

Nothing to install: this file belongs to BlackbirdWorks/gopherstack. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/BlackbirdWorks/gopherstack/main/.claude/skills/gopherstack-map/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/BlackbirdWorks/gopherstack

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 gopherstack-map

README.md
[![agentmods](https://agentmods.dev/badge/skills/blackbirdworks/gopherstack/gopherstack-map/github.svg)](https://agentmods.dev/skills/blackbirdworks/gopherstack/gopherstack-map)
Your own site
<a href="https://agentmods.dev/skills/blackbirdworks/gopherstack/gopherstack-map"><img src="https://agentmods.dev/badge/skills/blackbirdworks/gopherstack/gopherstack-map/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 gopherstack-map

Your own site · 80×15
<a href="https://agentmods.dev/skills/blackbirdworks/gopherstack/gopherstack-map"><img src="https://agentmods.dev/badge/skills/blackbirdworks/gopherstack/gopherstack-map.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 139 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,493 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 $0.00139 $0.02493
Opus 5.5 $0.00056 $0.00997
Sonnet 5.5 $0.00028 $0.00499
Haiku 4.5 $0.00014 $0.00249

Measured yesterday against content hash dcbb434301b0, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

gopherstack-map 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/svcmap.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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/skills/gopherstack-map/SKILL.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.

gopherstack map

161 per-service dirs share a small set of shapes. Reading this table beats re-deriving it with Glob/Grep.

Directory taxonomy

path contents
main.go thin entry (func main calls app.Run()); only other root files: default.pgo
internal/app/ composition root (formerly package main): cli.go (Run(), service wiring) + <x>.go cross-service wiring files + white-box tests (go test ./internal/app/)
internal/routegates/ route-gate logic (gates.go) + path_gates.txt
internal/cliconfig/ lifecycle/persistable settings types shared with internal/app
services/<svc>/ one emulator: handler.go + store.go + op-family files + PARITY.md + generated README.md
pkgs/ 32 shared infra packages (table below)
cmd/gendocs regenerates per-service READMEs + .badges/*.svg from PARITY.md (task docs)
test/e2e/ SDK-driven e2e
test/integration/ SDK-driven, Docker-container-backed — the real parity proof
test/terraform/ terraform-provider-aws acceptance-style
ui/ Svelte console source, ui/src/routes/<service>/
dashboard/static/spa/ built UI output (gitignored but .keep-protected, load-bearing)
.beads/ beads/Dolt issue tracker data
.badges/ 5 committed SVGs regenerated by task docs
docs/ hand-written narrative (architecture/, services/, docker.md, migration.md, quickstart.md) — distinct from generated per-service READMEs
docs/history/parity.md 1773-line live audit punch-list/planning doc — NOT a per-service manifest
services/_PARITY_TEMPLATE.md the PARITY.md schema

Also present: internal/, modules/, proto/, examples/, bench/, scripts/, assets/, demo/, bin/ (build output).

Entry points

  • main.go — 5 lines, calls app.Run().
  • internal/app/cli.go (~9160 lines): Run() at line 1747 (Kong CLI parsing, then service wiring). echo.New() at 2110. initializeServices at 2628, initIndependentServices at 2660 — this is where every provider is constructed. Chaos middleware registry.Use(chaos.Middleware(faultStore)) at 7626; IAM enforcement middleware at 7639.
  • Cross-service wiring (e.g. wireTaggingGrafana at 6992) happens in Run() AFTER all providers exist. That's why a service needing a sibling backend resolves it lazily on first request (see cross_service.go/crossservice.go below), not at Init time.

Read the full file on GitHub · 163 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 163 lines · 139 tokens per session scan A dcbb434301b0

Subscribe to this mod's changes

gopherstack-map is a skill published in the GitHub repository BlackbirdWorks/gopherstack (17 stars, last pushed yesterday), licensed MIT. It adds 139 tokens to every session and 2,493 once invoked, about $0.0006 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 2026-11-07.

Backend and APIsProductivityawslocalstackterraform
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gopherstack-map next to 6 skills from other repositories
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jiraArvo-AI/auroraSkill455yesterdayApache-2.0A19Claude Code
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prowler-apiprowler-cloud/prowlerSkill15kyesterdayApache-2.0A61Claude Code