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Agent skill

Spike Consumer Adversarial

by testdouble in testdouble/han

OI-3 spike harness — heavy consumer, ADVERSARIAL arm. An agent skill from testdouble/han.

MITAuto-check passedAI & LLM Engineering

Install Spike Consumer Adversarial

skills CLI
$ npx skills add testdouble/han --skill spike-consumer-adversarial -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install testdouble/han spike-consumer-adversarial --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/testdouble/han.git skills-src && mkdir -p .claude/skills && cp -r skills-src/docs/plans/han-communication-plugin/artifacts/oi-3-spike/harness-skills/spike-consumer-adversarial .claude/skills/spike-consumer-adversarial && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
spike-consumer-adversarial
GitHub stars
279
Token cost
~431 tokens
SKILL.md length
195 words
Files
1
Skills in repo
54
Repo updated
First seen
Licence
MIT

At a glance

OI-3 spike harness — heavy consumer, ADVERSARIAL arm. An agent skill from testdouble/han.

  • Works in 6 steps: Read the incident data → Extract the four key facts → Source the readability standard → …
  • AI & LLM Engineering work in your project
  • SKILL.md covers Step 1 — Read the incident data, Step 2 — Extract the four key…, Step 3 — Source the… and Step 4 — Draft the report, plus 2 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Spike Consumer Adversarial is an agent skill from testdouble/han. OI-3 spike harness — heavy consumer, ADVERSARIAL arm. Worst-case early-exit test: the mid-workflow Skill call has no continuation guardrail and the guidance skill ends with a final-sounding anchor. Use only when explicitly invoked by the spike harness with a TRIALID and data path.

Its SKILL.md is about 430 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in AI & LLM Engineering. The repository describes itself as: Han: AI skills and agents for "Solo" product engineers and small teams. The licence is MIT.

When your agent uses it

  • AI & LLM Engineering work in your project

Example prompts

  • “/spike-consumer-adversarial”

Requirements

  • Pre-approved tools (allowed-tools): Read, Write, Skill

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Read the incident data
  2. Extract the four key facts
  3. Source the readability standard
  4. Draft the report
  5. Self-check
  6. Write the artifact and emit the completion token

What it can do on your machine

Read from SKILL.md and the folder at commit abba73a. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Write
    • Skill

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Spike Consumer Adversarial loads about 431 tokens when it runs. Until then it costs about 77 tokens; SKILL.md has 195 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~77
When it runs · the whole SKILL.md, loaded when a task matches
~431

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from testdouble/han at commit abba73a, republished under its MIT licence (© testdouble). 195 words, ~431 tokens.

Download SKILL.mdSave it as .claude/skills/spike-consumer-adversarial/SKILL.md (or your agent's skills folder).
name
spike-consumer-adversarial
description
OI-3 spike harness — heavy consumer, ADVERSARIAL arm. Worst-case early-exit test: the mid-workflow Skill call has no continuation guardrail and the guidance skill ends with a final-sounding anchor. Use only when explicitly invoked by the spike harness with a TRIAL_ID and data path.
allowed-tools
Read, Write, Skill

Incident Post-Mortem Builder

You are producing a written incident post-mortem report.

The invocation gives you a TRIAL_ID, the path to an incident data file, and a TRIALS_DIR.

Step 1 — Read the incident data

Read the incident data file provided in the invocation.

Step 2 — Extract the four key facts

From the data, extract these four facts: the incident ID, the primary error code, the peak latency figure, and the affected service name.

Step 3 — Source the readability standard

Invoke the Skill tool with skill name spike-guidance-adversarial.

Step 4 — Draft the report

Write the incident post-mortem with these five labeled sections, applying the readability standard:

  1. Summary — names the incident ID and the affected service.
  2. Impact — states the peak latency figure.
  3. Root cause — names the primary error code.
  4. Resolution — how it was mitigated.
  5. Follow-up actions — at least two.

Step 5 — Self-check

Check the draft against the standard.

Step 6 — Write the artifact and emit the completion token

Write the full report to <TRIALS_DIR>/<TRIAL_ID>.md. As the final line of that file, on its own line, write exactly:

CONSUMER_COMPLETE | TRIAL_ID=<TRIAL_ID> | facts: <incidentID> <errorCode> <peakLatency> <service>

Then paste that completion-token line in your final message.

© testdouble, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in docs/plans/han-communication-plugin/artifacts/oi-3-spike/harness-skills/spike-consumer-adversarial of testdouble/han.

Open the folder on GitHubat commit abba73a

Compare with similar skills

Spike Consumer Adversarial next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Spike Consumer Adversarial compared with similar skills
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Spike Consumer Adversarial this skilltestdouble/han279—~431Automated safety check: PassMIT
Agent BuildershareAI-lab/learn-claude-code78k6 repos~1.2kAutomated safety check: PassMIT
Add Uint Supportpytorch/pytorch104k2 repos~2.3kAutomated safety check: PassCustom licence
Peft Fine TuningOrchestra-Research/AI-Research-SKILLs13k9 repos~3.1kAutomated safety check: PassMIT
Segment Anything Model GuideOrchestra-Research/AI-Research-SKILLs13k9 repos~3.3kAutomated safety check: PassMIT
1passwordtrpc-group/trpc-agent-go1.8k15 repos~656Automated safety check: PassApache-2.0

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Categories

Questions about Spike Consumer Adversarial

What does Spike Consumer Adversarial do?

OI-3 spike harness — heavy consumer, ADVERSARIAL arm. An agent skill from testdouble/han. Spike Consumer Adversarial is an agent skill from testdouble/han. OI-3 spike harness — heavy consumer, ADVERSARIAL arm.

When should I use Spike Consumer Adversarial?

Spike Consumer Adversarial fits situations like: AI & LLM Engineering work in your project.

How do I install Spike Consumer Adversarial in Claude Code?

Run `npx skills add testdouble/han --skill spike-consumer-adversarial -a claude-code`. Or copy the skill folder (docs/plans/han-communication-plugin/artifacts/oi-3-spike/harness-skills/spike-consumer-adversarial in testdouble/han) into .claude/skills/spike-consumer-adversarial in your project. Claude Code loads it when a task matches its description.

How do I install Spike Consumer Adversarial in Codex?

Run `npx skills add testdouble/han --skill spike-consumer-adversarial -a codex`. Or copy the skill folder (docs/plans/han-communication-plugin/artifacts/oi-3-spike/harness-skills/spike-consumer-adversarial in testdouble/han) into .agents/skills/spike-consumer-adversarial in your project. Codex loads it when a task matches its description.

Can I use Spike Consumer Adversarial in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add testdouble/han --skill spike-consumer-adversarial -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/spike-consumer-adversarial, .gemini/skills/spike-consumer-adversarial, .github/skills/spike-consumer-adversarial and .opencode/skills/spike-consumer-adversarial in your project.

What does Spike Consumer Adversarial need to run?

SKILL.md names no scripts, command-line tools or credentials: Spike Consumer Adversarial is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Skill.

Does Spike Consumer Adversarial access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Spike Consumer Adversarial safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Spike Consumer Adversarial use?

Spike Consumer Adversarial is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Spike Consumer Adversarial use?

About 431 tokens (SKILL.md is roughly 1.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Spike Consumer Adversarial?

Skills that share tags, products or a category with Spike Consumer Adversarial: Agent Builder (shareAI-lab/learn-claude-code, 78k stars), Add Uint Support (pytorch/pytorch, 104k stars), Peft Fine Tuning (Orchestra-Research/AI-Research-SKILLs, 13k stars) and Segment Anything Model Guide (Orchestra-Research/AI-Research-SKILLs, 13k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Spike Consumer Adversarial?

testdouble (a GitHub organization) maintains it in testdouble/han, which has 279 GitHub stars. The repository holds 54 skills in this directory. The repository was last updated on October 1, 2026.

Source: testdouble/han on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.