nika-debugger

nika-debugger is an agent for Codex from supernovae-st/nika-plugins. It costs 113 tokens per session (694 once invoked), scanned A, original, AGPL-3.0.

A debugging tool for Nika runs, using their hash-chained traces, which are records linked together so changes can be detected.

In plain words
What is it for?
Use it to investigate failed runs, find the exact command for resuming a paused prompt, explain NIKA-XXXX findings, or verify a trace.
Why use it?
It helps identify why a run failed or paused and provides evidence from the recorded execution trace.

Agent for Codex

Part of the nika plugin — 4 skills, 6 commands, 3 agents, 1 MCP server shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/supernovae-st/nika-plugins/nika-debugger
Clone the repo
git clone --depth 1 https://github.com/supernovae-st/nika-plugins

Made for: Codex.

Or install nika, the plugin that ships this one along with the rest of its 4 skills, 6 commands, 3 agents, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for nika-debugger

README.md
[![agentmods](https://agentmods.dev/badge/agents/supernovae-st/nika-plugins/nika-debugger.svg)](https://agentmods.dev/agents/supernovae-st/nika-plugins/nika-debugger)
Your own site
<a href="https://agentmods.dev/agents/supernovae-st/nika-plugins/nika-debugger"><img src="https://agentmods.dev/badge/agents/supernovae-st/nika-plugins/nika-debugger.svg" alt="Measured on agentmods" height="20"></a>
Per session 113 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 694 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00113 $0.00694
Opus 5 $0.00056 $0.00347
Sonnet 5 $0.00023 $0.00139
Haiku 4.5 $0.00011 $0.00069

Measured 3d ago against content hash 09590a4f55ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

nika-debugger scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/plugins/nika/agents/nika-debugger.md · 50 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 50 lines · 113 tokens per session scan A 09590a4f55ef

Subscribe to this mod's changes

nika-debugger is an agent published in the GitHub repository supernovae-st/nika-plugins (2 stars, last pushed 2d ago), licensed AGPL-3.0. It adds 113 tokens to every session and 694 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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