Claude Code Guide is a reference collection for configuring and using Claude Code, Anthropic’s command-line coding agent. Developers use it to learn commands, skills, agents, MCP, automation, security, integrations, and troubleshooting. Its catalogue add-ons provide many of the documented skills and agents.
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.
npx skills add zebbern/claude-code-guide --skill http-load-profilergit clone --depth 1 https://github.com/zebbern/claude-code-guideWrote 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.
[](https://agentmods.dev/skills/zebbern/claude-code-guide/http-load-profiler)<a href="https://agentmods.dev/skills/zebbern/claude-code-guide/http-load-profiler"><img src="https://agentmods.dev/badge/skills/zebbern/claude-code-guide/http-load-profiler/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.
<a href="https://agentmods.dev/skills/zebbern/claude-code-guide/http-load-profiler"><img src="https://agentmods.dev/badge/skills/zebbern/claude-code-guide/http-load-profiler.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to medium
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- medium Privilege Escalation · line 127 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
- medium Privilege Escalation · line 128 Commands invoke sudo or root privileges. Verify this elevated access is necessary and justified.Fix: Avoid sudo/root unless strictly required. Prefer least-privilege patterns. If elevation is needed, document the justification and scope.
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00076 | $0.01702 |
| Opus 5.5 | $0.00030 | $0.00681 |
| Sonnet 5.5 | $0.00015 | $0.00340 |
| Haiku 4.5 | $0.00008 | $0.00170 |
Grade B, and why
http-load-profiler scanned grade B with 1 finding 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.
Asks for rootmediumPrivilege escalation
A mod that escalates privileges can change anything on the machine, not only the project.
sudo apt-get install wrk # recommended Copies of this mod
1 near-identical copy found in the catalogue:
- http-load-profiler — 100% identical, 0 lines differ
How it starts
The opening of the file, as written. The whole thing — 152 lines — stays where its author put it; the contents beside it link to each section on GitHub.
HTTP Load Profiler — Stepped Concurrency Load Test + Inflection Point Analysis
Run stepped concurrency load tests against HTTP services, automatically collect latency percentiles, and detect performance inflection points.
Features
- Dual engine support: Auto-detects wrk (preferred) or ab (Apache Bench); manual override available
- Stepped concurrency: Ramps up through user-defined concurrency levels (default: 1 → 10 → 50 → 100 → 200 → 500)
- Latency percentiles: Collects p50 / p90 / p99 latency at each level
- Inflection point detection: Automatically identifies four types of performance inflection points
- p99 latency accelerating (increase exceeds 2x the previous step's increase)
- Throughput efficiency dropping significantly (RPS per connection drops > 40%)
- Throughput saturated while latency spikes (RPS growth < 10%, p99 growth > 50%)
- Error rate surging (exceeds 1% and doubles from previous step)
- Optimal concurrency recommendation: Automatically suggests the best concurrency level based on inflection points
- Zero Python dependencies: Pure standard library implementation
Quick Start
# Basic usage — run default stepped load test against target URL
python3 scripts/http_benchmark.py https://example.com/api/health
# Custom concurrency steps and duration per step
python3 scripts/http_benchmark.py https://example.com/api/health -s 5,20,50,100,300 -d 15
# Specify ab as the engine
python3 scripts/http_benchmark.py https://example.com/ -t ab
# JSON-only output (for programmatic parsing)
python3 scripts/http_benchmark.py https://example.com/api/health --json
# Use ab with a specific number of requests per step
python3 scripts/http_benchmark.py https://example.com/ -t ab -n 5000
# Save JSON report to a file
python3 scripts/http_benchmark.py https://example.com/api/health --json > report.json
Parameters
| Parameter | Short | Default | Description |
|---|---|---|---|
url |
— | (required) | Target URL (http:// or https://) |
--steps |
-s |
1,10,50,100,200,500 |
Concurrency steps (comma-separated positive integers) |
--duration |
-d |
10 |
Duration per step in seconds (used directly by wrk; ab estimates request count from this) |
--requests |
-n |
concurrency×100 |
Total requests per step when using ab |
--tool |
-t |
auto-detect | Specify load testing tool: wrk or ab |
--threads |
— | min(concurrency, CPU cores) |
Thread count for wrk |
--json |
— | false |
Output JSON only |
What ships with it
2 files 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.
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.
- 1mo ago First seen · 152 lines · 76 tokens per session scan B ce4839afdba6
http-load-profiler is a skill published in the GitHub repository zebbern/claude-code-guide (4,668 stars, last pushed 2d ago), licensed MIT. It adds 76 tokens to every session and 1,702 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
http-load-tester
A command-line tool for gradually increasing the number of simultaneous requests sent to an HTTP service, such as an API or website.
http-load-profiler
Run stepped HTTP load tests with ab/wrk, ramping concurrency levels to collect p50/p90/p99 latency, detect performance inflection points, and recommend optimal concurrency. Triggered by requests like 'load test this URL', 'benchmark my API', 'find the max concurrency', or mentions of p99 latency, throughput…
Artillery Load Testing
Write and run Artillery load tests with YAML phases and scenarios, CSV data payloads, the expect plugin for functional checks, and ensure thresholds that fail CI when latency or error budgets are breached.
hotpath_cloud
Read hotpath Cloud performance verdicts with the hotpath cloud CLI and fix Rust performance regressions. Fetches the benchmark report of a commit or pull request, compares it with its baseline under the repository's regression policy and performance budgets, and lists what regressed and which budgets broke, as JSON.…
hotpath_init_ci_forks
Set up the hotpath Cloud CI integration in a public Rust project that benchmarks pull requests from forks. Adds the hotpath-cloud feature, a regression policy file, a GitHub Actions benchmark workflow that writes hotpath reports as artifacts and a relay workflow that uploads them, so every pull request, forks…
hotpath_init_ci
Set up the hotpath Cloud CI integration in a Rust project whose pull requests come from branches of the same repository (private repositories, or public ones that do not benchmark fork pull requests). Adds the hotpath-cloud feature, a regression policy file and a GitHub Actions benchmark workflow that uploads hotpath…