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Giskard

自分のエージェントに敵対的な入力を仕掛け、拒否すべきだったのに答えてしまったものを報告する

Apache-2.0
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最終コミット
2026年8月28日

Giskardとは

評価で分かるのは、自分が思いついた質問に対する出来です。安全性についてはそれでは形が合いません。問題になるのは、思いつかなかった質問のほうだからです。Giskardはそこを反転させます。スキャンが敵対的な入力を自ら生成し、拒否すべきだったのに答えてしまったものを報告するため、試験項目は想像力ではなくツールが用意します。あわせて、検索を使う仕組みが静かに壊れていく典型的な形を調べるスキャンと、期待する振る舞いを通常のテストとして書き、pytestで合否を出す仕組みがあります。一度気になった確認事項を、変更のたびに走る確認に変えられます。開発元は、指摘ゼロが安全性や法令遵守の保証ではないと明記しています。

Giskardで何ができますか?

  • 敵対的な入力はツールに書かせる — 攻撃側の入力をスキャンが生成します。自分では思いつかなかった事例を覆う方法は、これ以外にありません。
  • 検索が静かに失敗している箇所を見つける — 文書に基づいて答える仕組みが、間違って見えないまま間違う典型的な形を専用のスキャンが調べます。通常の正答率では表に出ません。
  • 見つけた問題をテストとして残す — 期待する振る舞いをシナリオと判定として書き、pytestで実行します。一度直したことが、変更のたびに再確認されます。
  • 既存のテスト環境の中で回す — 基盤ではなくPythonのライブラリなので、先にサービスを立ち上げなくても既存の自動実行の流れに組み込めます。

Giskardを選ぶ前に

  • スキャン結果は安全性や法令遵守の保証ではないと開発元が明記しています。見つかるのは問題の一部であり、指摘がないことは問題がないことの根拠になりません。
  • オープンなライブラリが担うのはスキャンとテストまでです。継続的な攻撃テスト、データ管理、定期実行は同社の別のホスティング型製品に含まれます。

よくある質問

Giskardは商用利用できますか?

GiskardはApache-2.0ライセンスで公開されています。OSI承認のオープンソースライセンスで、商用利用が認められています。

Giskardはどの形で使えますか?

Giskardはローカル実行・セルフホストの形で利用できます。

ドキュメント

Giskard-AI/giskard-oss のREADMEより転載(Apache-2.0)。 原文を読む ↗

CI

[!IMPORTANT] Giskard v3 is a fresh rewrite designed for dynamic, multi-turn testing of AI agents. This release drops heavy dependencies for better efficiency while introducing a more powerful AI vulnerability scanner and enhanced RAG evaluation — both now shipping natively in giskard-scan, with no dependency on v2. Only the legacy scan for tabular/ML models remains v2-only. Giskard v2 remains available but is no longer actively maintained. Follow progress → Read the v3 Announcement · Roadmap

Install

pip install giskard           # checks (+ agents, llm, core)
pip install "giskard[scan]"   # + vulnerability / quality scan
pip install "giskard[openai]" # provider SDK for LLM judges / generators

Requires Python 3.12+.

ExtraAdds
(none)giskard-checks and dependencies
scangiskard-scan
openai / anthropic / …provider SDKs (see pyproject.toml optional deps)

Telemetry: optional aggregated analytics via giskard-core. No prompts or outputs are sent. Opt out before importing Giskard: export DO_NOT_TRACK=1 or export GISKARD_TELEMETRY_DISABLED=1. Details: giskard-core README.


Giskard is an open-source Python library for testing and evaluating agentic systems. The v3 architecture is a modular set of focused packages — each carrying only the dependencies it needs — built from scratch to wrap anything: an LLM, a black-box agent, or a multi-step pipeline.

StatusPackageDescription
✅ Stablegiskard-checksTesting & evaluation — scenario API, built-in checks, LLM-as-judge
✅ Stablegiskard-scanAgent vulnerability scanner + RAG/quality evaluation — red teaming, prompt injection, jailbreaks & harmful content (vulnerability_scan, successor of v2 Scan), plus knowledge-base quality eval (quality_scan, successor of v2 RAGET)

These build on three foundational libraries — giskard-core (shared utilities & telemetry), giskard-llm (provider-agnostic LLM routing), and giskard-agents (agent & workflow orchestration) — which are pulled in automatically and rarely used directly.

Giskard Checks — create and apply evals for testing agents

pip install giskard-checks

Giskard Checks is a lightweight library for creating evaluations (evals) that test LLM-based systems — from simple assertions to LLM-as-judge assessments. Unlike traditional unit tests, evals are designed for non-deterministic outputs where the same input can produce different valid responses.

Use Giskard Checks to:

  • Catch regressions — verify your system still behaves correctly after changes
  • Validate RAG quality — check if answers are grounded in retrieved context
  • Enforce safety rules — ensure outputs conform to your content policies
  • Evaluate multi-turn agents — test full conversations, not just single exchanges

Built-in evals include string matching, comparisons, regex, semantic similarity, and LLM-as-judge checks (Groundedness, Conformity, LLMJudge).

Concepts

  • Target — your system under test: any sync/async callable (inputs) -> outputs (optionally with trace)
  • Scenario — one eval: interactions + checks
  • Check — assertion or LLM judge over the trace
  • Suite — many scenarios run together

giskard.agents.Generator is an LLM client for workflows/judges — not the same as giskard.checks input generators (LLMGenerator) that synthesize user messages.

Quickstart

import asyncio
from giskard.checks import Scenario, Groundedness


def get_answer(inputs: str) -> str:
    return "Paris"  # replace with your model / agent


async def main() -> None:
    scenario = (
        Scenario("test_france_capital")
        .interact(inputs="What is the capital of France?", outputs=get_answer)
        .check(
            Groundedness(
                name="answer is grounded",
                context="France is in Western Europe. Its capital is Paris.",
            )
        )
    )
    result = await scenario.run()
    result.print_report()


asyncio.run(main())

Groundedness is an LLM judge — install a provider extra (e.g. pip install "giskard[openai]") and set the matching API key. Default model: openai/gpt-4o-mini.

See the full docs for Suites, LLMJudge, multi-turn scenarios, and more.


Giskard Scan — vulnerability scanner for AI agents

pip install "giskard[scan]"   # or: pip install giskard-scan

Giskard Scan is the red-teaming and vulnerability scanning layer for agentic systems. It generates adversarial test suites automatically from a plain-language description of your agent, covering prompt injection, harmful content, stereotypes, misinformation, and more.

Use Giskard Scan to:

  • Red-team your agent — automatically generate adversarial inputs across OWASP LLM Top-10 threat categories
  • Run prompt-injection probes — built-in dataset of injection payloads ready to use
  • Extend with custom generators — pass your own ScenarioGenerator instances to generate_suite, or register them on vulnerability_suite_generator_registry

Quickstart

import asyncio
from giskard.scan import vulnerability_scan


async def my_agent(inputs: str) -> str:
    # Replace with your agent / model call
    return f"Echo: {inputs}"


async def main() -> None:
    await vulnerability_scan(
        target=my_agent,
        description="A customer support chatbot for an e-commerce platform.",
        languages=["en"],
    )


asyncio.run(main())

Scan generators also need an LLM provider extra and API key (same as Checks judges above).

Looking for Giskard v2?

Giskard v2 included Scan (automatic vulnerability detection) and RAGET (RAG evaluation test set generation).

For LLM agents, both are superseded in v3 by giskard-scan: use vulnerability_scan in place of the v2 LLM scan, and quality_scan (with KnowledgeBase) in place of RAGET.

v3 works with ML models too — wrap one as a target and evaluate it with giskard-checks or giskard-scan. What the examples below cover is the v2-only automatic tabular scan — the detector suite that introspects a giskard.Model + giskard.Dataset to auto-detect performance, bias, and robustness issues — along with the giskard.testing ML test suite and the Giskard Hub. These are not planned for v3.

pip install "giskard[llm]>2,<3"

Scan — automatically detect performance, bias & security issues

Wrap your model and run the scan:

import giskard
import pandas as pd


# Replace my_llm_chain with your actual LLM chain or model inference logic
def model_predict(df: pd.DataFrame):
    """The function takes a DataFrame and must return a list of outputs (one per row)."""
    return [my_llm_chain.run({"query": question}) for question in df["question"]]


giskard_model = giskard.Model(
    model=model_predict,
    model_type="text_generation",
    name="My LLM Application",
    description="A question answering assistant",
    feature_names=["question"],
)

scan_results = giskard.scan(giskard_model)
display(scan_results)

RAGET — generate evaluation datasets for RAG applications

Automatically generate questions, reference answers, and context from your knowledge base:

import pandas as pd
from giskard.rag import generate_testset, KnowledgeBase

# Load your knowledge base documents
df = pd.read_csv("path/to/your/knowledge_base.csv")
knowledge_base = KnowledgeBase.from_pandas(df, columns=["column_1", "column_2"])

testset = generate_testset(
    knowledge_base,
    num_questions=60,
    language="en",
    agent_description="A customer support chatbot for company X",
)

Full v2 docs

We welcome contributions from the AI community! Read this guide to get started, and join our thriving community on Discord.

Follow the progress and share feedback: v3 Announcement · Roadmap

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