concordance-mod

Build and manage Concordance mods for LLM generation interventions.

8|Updated Jan 23, 2026
One-click install
npx skills add https://github.com/concordance-co/quote --skill concordance-mod
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: concordance-mod
Source: https://github.com/concordance-co/quote/tree/main/.claude/skills/concordance-mod
Command: npx skills add https://github.com/concordance-co/quote --skill concordance-mod

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Developing and maintaining real-time LLM intervention mods can be complex, error-prone, and hard to share across teams; this skill provides a structured framework to create, upload, and debug Concordance mods for inference-time interventions.

Core Features & Use Cases

  • Create, upload, and debug inference-time mods for LLM generation.
  • Support for events (Prefilled, ForwardPass, Sampled, Added) and actions (noop, force_tokens, backtrack, adjust_logits, etc.), plus advanced patterns like SelfPrompt and FlowEngine.
  • CLI-based mod management and API integration for deploying and testing mods.

Quick Start

Install the CLI, generate a new mod template, and begin testing your Concordance mod with the provided tooling.

Frequently Asked Questions about concordance-mod

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I intercept and steer LLM generation during inference?

To intercept and steer LLM generation during inference, you build Concordance mods using an extensible plugin framework that hooks into events like ForwardPass and Sampled to execute actions such as adjust_logits or force_tokens.

What are inference-time interventions for LLMs and when do I need them?

Inference-time interventions for LLMs are plugins that modify generation dynamically without retraining. You need them to enforce specific output constraints, correct errors in real-time, or apply complex control patterns like SelfPrompt.

How do I debug an LLM mod that is not applying force_tokens correctly?

To debug an LLM mod failing to apply force_tokens, use the Concordance CLI tooling to test your mod template, inspect event triggers, and verify that your action configurations are correctly deployed.

Does the Concordance framework support backtracking and adjusting logits?

Yes, the Concordance framework supports backtracking and adjusting logits. Developers can implement these actions within the Sampled or ForwardPass events to dynamically alter token generation.

What is the best way to build complex control flows for LLM interventions?

The best way to build complex control flows for LLM interventions is using the FlowEngine pattern, which provides an extensible architecture for orchestrating multi-step generation logic within your mods.

Do I need the Concordance SDK and CLI to develop and deploy mods?

Yes, you need the Concordance SDK and CLI to develop and deploy mods. These tools provide the necessary templates, API integration, and testing environment required to build production-quality interventions.