davidmatousek/tachi

Threat modeling and AI-reasoning vulnerability detection harness for Claude Code — STRIDE + AI + MAESTRO

This repository also configures its own agents. See what tachi tells them →

95Stars on the repository
106Mods indexed here, across every type
4d agoLast push, which is what freshness is scored on
Apache-2.0Licence, which decides whether bodies are shown

davidmatousek/tachi

Agent Claude Code needs its repo

Detects threats from autonomous agent systems operating with insufficient constraints on decision-making, action scope, or operational boundaries, including excessive autonomy, goal misalignment, and cascading multi-agent failures.

not rated 95 +1 4d ago A 42 tokens original Apache-2.0

davidmatousek/tachi

Agent Claude Code needs its repo

Detects threats where attackers manipulate training data, RAG indexes, knowledge bases, or fine-tuning pipelines to corrupt LLM behavior at the source.

not rated 95 +1 4d ago A 37 tokens original Apache-2.0

davidmatousek/tachi

Agent Claude Code needs its repo

STRIDE denial of service threat agent that detects availability degradation threats against Processes, Data Stores, and Data Flows, covering resource exhaustion, algorithmic complexity attacks, connection pool exhaustion, and cascading dependency failures.

not rated 95 +1 4d ago A 48 tokens original Apache-2.0

davidmatousek/tachi

Agent Claude Code needs its repo

STRIDE information disclosure threat agent that detects confidentiality violations against Processes, Data Stores, and Data Flows, covering error message exposure, excessive data in responses, data at rest and in transit exposure, and side-channel leakage.

not rated 95 +1 4d ago A 50 tokens original Apache-2.0

tachi-model-theft

05

davidmatousek/tachi

Agent Claude Code needs its repo

Detects threats where attackers attempt to steal, replicate, or extract proprietary model assets through weight exfiltration, API-based extraction, artifact exposure, side-channel attacks, and supply chain compromise.

not rated 95 +1 4d ago A 44 tokens original Apache-2.0

davidmatousek/tachi

Agent Claude Code needs its repo

STRIDE elevation of privilege threat agent that detects unauthorized privilege gain against Processes, covering broken access control, insecure direct object references, role escalation, multi-tenancy boundary violations, and lateral movement.

not rated 95 +1 4d ago A 47 tokens original Apache-2.0

davidmatousek/tachi

Agent Claude Code needs its repo

Detects prompt injection vulnerabilities in LLM-integrated components, including direct injection, indirect injection via RAG pipelines, jailbreaking, system prompt extraction, and cross-plugin injection attacks.

not rated 95 +1 4d ago B 43 tokens original Apache-2.0

tachi-repudiation

08

davidmatousek/tachi

Agent Claude Code needs its repo

STRIDE repudiation threat agent that detects accountability failures against External Entities and Processes, covering missing audit trails, insufficient log detail, log tampering vulnerabilities, and timestamp manipulation.

not rated 95 +1 4d ago A 41 tokens original Apache-2.0

tachi-risk-scorer

09

davidmatousek/tachi

Agent Claude Code needs its repo

Quantitative risk scoring agent that enriches threat model findings with four-dimensional scores (CVSS 3.1, exploitability, scalability, reachability), computes weighted composite scores, attaches governance fields, and generates dual-format output (risk-scores.md and risk-scores.sarif).

not rated 95 +1 4d ago A 65 tokens original Apache-2.0

tachi-spoofing

10

davidmatousek/tachi

Agent Claude Code needs its repo

STRIDE spoofing threat agent that detects identity impersonation threats against External Entities and Processes, covering authentication bypass, credential theft, session hijacking, and federated identity attacks.

not rated 95 +1 4d ago A 42 tokens original Apache-2.0

tachi-tampering

11

davidmatousek/tachi

Agent Claude Code needs its repo

STRIDE tampering threat agent that detects unauthorized data modification threats against Processes, Data Stores, and Data Flows, covering input injection, data flow manipulation, persistent data corruption, and supply chain attacks.

not rated 95 +1 4d ago A 46 tokens original Apache-2.0

davidmatousek/tachi

Agent Claude Code needs its repo

Transforms structured threat model output into visual infographic specifications and images via Gemini API. Supports multiple templates: Baseball Card (risk summary dashboard) and System Architecture (annotated architecture diagram with attack surface badges).

not rated 95 +1 4d ago A 45 tokens original Apache-2.0

tachi-threat-report

13

davidmatousek/tachi

Agent Claude Code needs its repo

Transforms structured threat model output into a narrative threat report with executive summary, Mermaid attack trees for Critical and High findings, prioritized remediation roadmap with effort estimates, and complete finding traceability.

not rated 95 +1 4d ago A 41 tokens original Apache-2.0

tachi-tool-abuse

14

davidmatousek/tachi

Agent Claude Code needs its repo

Detects threats from agentic systems invoking external tools, MCP servers, plugins, or APIs, including unauthorized tool invocation, capability escalation through tool composition, parameter injection, and tool poisoning attacks.

not rated 95 +1 4d ago A 44 tokens original Apache-2.0

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