Hunt for hidden contradictions behind vague language, ambiguous terms, and assumption gaps in user-provided information. Use as part of the spec-contradiction-hunter skill workflow.
Use this agent when the user wants to bump the version, commit staged changes, or do both. Delegates to version-bumper and commit skills.
Hunt for deeper structural and logical inconsistencies in user-provided information. Requirements that are technically incompatible, scope mismatches, and implicit assumption clashes. Use as part of the spec-contradiction-hunter skill workflow.
Hunt for obvious, direct contradictions in user-provided information. Statements that explicitly conflict with each other. Use as part of the spec-contradiction-hunter skill workflow.
Post a review comment to a pull request. Use whenever the user asks to "post a comment", "add review comment", "comment on PR", "leave feedback on PR", "post inline comment", "add PR note", "review comment", or wants to post any kind of feedback to a pull request. Handles both general PR comments and inline file-specific comments. Works with Azure DevOps (via MCP or CLI). If no PR link is given, auto-detects from the current branch.
This skill should be used when the user wants to "find contradictions", "check consistency", "validate my spec", "cross-check requirements", "spot inconsistencies", or has provided a body of information (spec, requirements, design doc) that needs consistency validation. Spawns parallel agents to hunt obvious and deeper contradictions.
Use when the user wants an in-depth requirements interview that produces a detailed implementation spec.
Commit staged changes following Conventional Commits v1.0.0. Activate when user asks to commit, create a commit, or says /commit.
Create a pull request from the current branch. Activate when user asks to create a PR, open a pull request, submit for review, or says /create-pr.
Uses power tools
Uses Bash, Write, or Edit tools
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Verify ownership to unlock analytics, metadata editing, and a verified badge. GitHub access is read-only (username + org membership).
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Verify ownership to unlock analytics, metadata editing, and a verified badge. GitHub access is read-only (username + org membership).
Sign in to claimBased on adoption, maintenance, documentation, and repository signals. Not a security audit or endorsement.
Simple, robust, and versatile marketplace for agent plugins, forged for the chaos of the AI world.
It collects practical tools for Codex and Claude Code across LLM observability, API exploration, development workflows, assistant operations, research notes, cloud storage, local automation, runtime app verification, and job-search workflows.
flowchart TB
subgraph RowOne[" "]
direction LR
Langfuse["`**langfuse**
Trace exploration, datasets,
evaluators, dashboards, and experiments`"]:::langfuse
OpenAPITools["`**openapi-tools**
List and inspect OpenAPI endpoints
on running services`"]:::openapi
LLMApplicationDev["`**llm-application-dev**
Agent pattern selection and
schema-guided reasoning`"]:::llm
PythonDevWorkflow["`**python-dev-workflow**
Pytest, Redis test patterns,
Celery, and unit-test review agents`"]:::python
DevWorkflow["`**dev-workflow**
Commits, PRs, tickets, releases,
and review-comment workflows`"]:::dev
end
subgraph RowTwo[" "]
direction LR
WorkSessionTools["`**work-session-tools**
Daily notes, task tracking,
interviews, and team planning`"]:::session
AIAssistantOps["`**ai-assistant-ops**
Assistant setup audits, skill improvement,
harness adaptation, and Markdown cleanup`"]:::ops
OSTools["`**os-tools**
Local macOS automation utilities
for assistant workflows`"]:::os
CloudStorageTools["`**cloud-storage-tools**
User-file storage workflows for
Dropbox, Drive, OneDrive, and MEGA`"]:::storage
JobHuntToolkit["`**job-hunt-toolkit**
Versioned job applications with
resume tailoring and PDF checks`"]:::job
end
subgraph RowThree[" "]
direction LR
RunAndVerifyApp["`**run-and-verify-app**
Launch apps, verify runtime behavior,
and record run recipes`"]:::runverify
MermaidDiagrams["`**mermaid-diagrams**
Mermaid generation,
syntax references, and linting`"]:::mermaid
end
Langfuse ~~~ OpenAPITools ~~~ LLMApplicationDev ~~~ PythonDevWorkflow ~~~ DevWorkflow
WorkSessionTools ~~~ AIAssistantOps ~~~ Research ~~~ OSTools ~~~ CloudStorageTools ~~~ JobHuntToolkit
RowOne ~~~ RowTwo
RowTwo ~~~ RowThree
RunAndVerifyApp ~~~ MermaidDiagrams
classDef langfuse fill:#dff7ff,stroke:#0284c7,stroke-width:2px,color:#0f172a;
classDef openapi fill:#dcfce7,stroke:#16a34a,stroke-width:2px,color:#052e16;
classDef llm fill:#fef3c7,stroke:#d97706,stroke-width:2px,color:#451a03;
classDef python fill:#ede9fe,stroke:#7c3aed,stroke-width:2px,color:#2e1065;
classDef dev fill:#fee2e2,stroke:#dc2626,stroke-width:2px,color:#450a0a;
classDef runverify fill:#e0f2fe,stroke:#0369a1,stroke-width:2px,color:#082f49;
classDef session fill:#ccfbf1,stroke:#0f766e,stroke-width:2px,color:#042f2e;
classDef ops fill:#fce7f3,stroke:#db2777,stroke-width:2px,color:#500724;
classDef research fill:#fef9c3,stroke:#ca8a04,stroke-width:2px,color:#422006;
classDef os fill:#e0e7ff,stroke:#4f46e5,stroke-width:2px,color:#1e1b4b;
classDef storage fill:#ecfccb,stroke:#65a30d,stroke-width:2px,color:#1a2e05;
classDef job fill:#ffedd5,stroke:#ea580c,stroke-width:2px,color:#431407;
classDef mermaid fill:#f0fdf4,stroke:#059669,stroke-width:2px,color:#052e16;
style RowOne fill:transparent,stroke:transparent,color:transparent;
style RowTwo fill:transparent,stroke:transparent,color:transparent;
style RowThree fill:transparent,stroke:transparent,color:transparent;
Use this README when you want to install the marketplace, install a plugin, or
choose what each plugin is for. Developer and maintenance notes live in
AGENTS.md.
Add the marketplace:
codex plugin marketplace add Alex-Kopylov/zweihander
Install a plugin:
codex plugin add langfuse@zweihander
List available plugins:
codex plugin list
Update the installed marketplace:
codex plugin marketplace upgrade zweihander
Add the marketplace from inside Claude Code:
/plugin marketplace add Alex-Kopylov/zweihander
Install a plugin:
/plugin install langfuse@zweihander
Update the installed marketplace:
/plugin marketplace update zweihander
For scripts or automation, use the non-interactive CLI:
claude plugin marketplace add Alex-Kopylov/zweihander
claude plugin install langfuse@zweihander
claude plugin marketplace update zweihander
plugin@zweihander, for example
langfuse@zweihander.langfuseUse when: you need to inspect Langfuse data, create or update evaluation assets, compare experiment runs, or manage dashboard widgets.
Skills
npx claudepluginhub alex-kopylov/zweihander --plugin dev-workflowGenerate and validate Mermaid diagrams with synced syntax references.
Skills for listing and inspecting OpenAPI endpoints on running services.
Python-specific pytest, Redis test patterns, Celery, and unit-test review/execution agents.
LLM application design, agent pattern selection, and schema-guided reasoning patterns.
Research knowledge-base and Obsidian vault workflows for agent-maintained notes.
Comprehensive feature development workflow with specialized agents for codebase exploration, architecture design, and quality review
A growing collection of Claude-compatible academic workflow bundles. Covers scientific figures, manuscript writing and polishing, reviewer assessment, citation retrieval, data availability, paper reading, literature search, response letters, paper-to-PPTX conversion, and evidence-grounded Chinese invention patent drafting. Rules are organized as reusable skill folders with explicit workflows and quality checks.
Harness-native ECC operator layer - 67 agents, 271 skills, 92 legacy command shims, reusable hooks, rules, selective install profiles, and production-ready workflows for Claude Code, Codex, OpenCode, Cursor, and related agent harnesses
Upstash Context7 MCP server for up-to-date documentation lookup. Pull version-specific documentation and code examples directly from source repositories into your LLM context.