Plugin

nika

Author, debug, operate and migrate AI workflows as checkable .nika.yaml files — 4 skills, 3 subagents, 2 rules, 5 slash commands (/nika:check · /nika:explain · /nika:new · /nika:trace · /nika:permits), 3 hooks on every surface — Cursor, Claude Code and Codex (one dialect, sniffed) (session context · check-on-edit · a guard that audits before any nika run) and the read-only Nika MCP oracle (8 tools · nika_check through nika_tools). Requires the nika binary: brew install supernovae-st/tap/nika

What's Inside

Slash Commands5

Check

/check

Audit a .nika.yaml workflow before it runs — findings with their NIKA-XXXX codes, cost envelope, permits

Explain

/explain

Narrate a workflow (waves · cost · touches · how to run) or teach a NIKA-XXXX error code

New

/new

Scaffold a workflow from an embedded template, then audit it clean

Permits

/permits

Infer and paste the tightest permits boundary — the workflow's declared blast radius, default-deny from then on

Trace

/trace

Read a run's flight recorder — verdict, failing task, tamper check, and the exact resume line if paused

Agents3

nika-author

/nika-author

Writes and repairs .nika.yaml workflows with the deterministic authoring protocol. Use when the user wants repeatable AI work turned into a workflow file, asks for a .nika.yaml, or a nika check must pass. Routes intent to a template, fills the SLOT markers, then loops nika check until rc=0. Read-only oracle; it never runs the workflow.

nika-debugger

/nika-debugger

Root-causes failed or paused Nika runs from their hash-chained traces. Use when nika run exited red, a run paused on a prompt and needs the exact resume line, a NIKA-XXXX runtime finding needs a cause, or a trace must be verified and explained. Evidence-first — reads .nika/traces via nika trace; proposes fixes and run lines, never executes them.

nika-migrator

/nika-migrator

Ports an existing script, Makefile target, CI job or prompt chain to a checkable .nika.yaml workflow. Use when converting ad-hoc automation to nika, when a shell script wraps LLM/HTTP/file plumbing, or when a prompt chain in a doc should become a runnable, auditable file. Inventories side effects first, maps steps to the four verbs native-first, proves with check and a golden pin.

Skills4

nika-authoring

/nika-authoring

Author, check and repair Nika workflows (.nika.yaml files — the workflow language for AI). Use when writing or editing a *.nika.yaml file, converting a repeated AI task or prompt chain into a workflow, or when nika check reports NIKA-XXXX findings to fix.

nika-debugging

/nika-debugging

Diagnose and repair failed, paused or suspicious Nika runs from their traces (.nika/traces). Use when nika run exited red, a run paused on a prompt, a NIKA-XXXX runtime finding needs a root cause, a trace must be read or tamper-verified, or a fixed workflow needs a surgical partial rerun.

nika-migration

/nika-migration

Convert existing automation — shell scripts, Python glue, Makefile targets, CI jobs, prompt chains in docs — into checkable .nika.yaml workflows. Use when a script wraps LLM calls or HTTP/file plumbing, a prompt chain lives in a README or notebook, or ad-hoc automation needs audit, cost bounds and replayable traces.

nika-operating

/nika-operating

Operate Nika workflows day-2 — spend caps, permits boundaries, secrets, model swaps (cloud/local), CI wiring, trace export. Use when hardening a working workflow for production, wiring it into CI or a scheduler, capping cost, tightening the permits boundary, swapping models, or exporting traces to OpenTelemetry.

Hooks1

Event Hooks

Bash

File writes

3 hooks across 3 events

MCP Servers1

nika

The plugin manifest points to a different repository than the source indexed by ClaudePluginHub.

Stats

Version0.103.0

ReleasedJul 13, 2026

LanguageShell

Stars1

MaintenanceExcellent

LicenseAGPL-3.0-or-later

Last CommitJul 15, 2026

AddedJul 3, 2026

Actions

View on GitHub View README Plugin Marketplace JSON Homepage

Available In

nika1

Safety Signals

Caution

Executes bash commands

Hook triggers when Bash tool is used

Modifies files

Hook triggers on file write and edit operations

Tags

nika-agents · the Nika plugin marketplace

Teach your agent to hand repeatable work to Nika: a plain-text workflow it can check before a token is spent and verify after. This repo is the install surface: 4 skills (author · debug · operate · migrate), 3 subagents, 5 commands (/nika:check · /nika:explain · /nika:new · /nika:trace · /nika:permits), 3 hooks and the read-only MCP oracle (9 tools: nika_check · nika_explain · nika_schema · nika_examples · nika_template · nika_canon · nika_catalog · nika_tools · nika_inspect), for the plugin ecosystems:

brew install supernovae-st/tap/nika # the binary first; plugins invoke it # Codex codex plugin marketplace add supernovae-st/nika-agents codex plugin add nika@nika codex plugin marketplace upgrade nika # later: pull a new kit version # (the per-version cache refreshes on the next run) # Claude Code · updating is TWO rungs (proven live: an install sat 3 releases # behind, silently, with a fresh clone right next to it): claude plugin marketplace add supernovae-st/nika-agents claude plugin install nika@nika claude plugin marketplace update nika # rung 1: refresh the CLONE claude plugin update nika@nika # rung 2: move the INSTALL, then restart # Or climb every rung on every surface you have (Cursor · Claude Code · # Codex), one gesture · and `--check` reports drift read-only (CI-able): scripts/update-mirrors.sh # Cursor · search "nika" in the marketplace (Settings → Plugins), one Add # installs the full bundle: rule + skill + subagent + commands + hooks + MCP. # Or wire this repo as a team marketplace: Dashboard → Plugins → add # supernovae-st/nika-agents # (A manual drop into ~/.cursor/plugins/local/ loads MCP + skills ONLY — # Cursor's local loader ignores the other components. Until the marketplace # listing serves you: `nika init` equips the repo fully · rules · mcp · # the three subagents · delegation rule · the three seatbelt hooks, all # project-side and byte-identical to this kit (engine ≥0.101).) # Hermes, or any skills.sh-compatible client hermes skills tap add supernovae-st/nika-agents # then: hermes skills list hermes skills install https://raw.githubusercontent.com/supernovae-st/nika-agents/main/skills/autonomous-ai-agents/nika/SKILL.md # or: npx skills add supernovae-st/nika-agents

The Hermes-facing skill (skills/autonomous-ai-agents/nika/SKILL.md · agentskills.io shape) teaches the delegation idiom: Hermes orchestrates, Nika runs the repeatable work as a checkable file with receipts: check before run, budget caps on paid models, trace verify after.

Other install paths (script, manual download): nika.sh. One-click MCP wiring where the client supports it (binary still required):

🗺️ Every door in one page: install paths, IDEs, agents, skills, MCP, CI, SDKs: docs.nika.sh/integrations/everywhere.

How the pieces fit (the three layers)

ENGINE supernovae-st/nika the source of truth ├─ .agents/plugins/nika/ THE plugin kit (skills · subagents · │ 3 manifests: claude · codex · commands · rules · hooks · MCP · logo) │ cursor · mirrored HERE, byte-pinned ├─ nika init per-REPO scaffold (AGENTS.md · │ .cursor/{rules,mcp.json} · .vscode · │ copilot brief · CLAUDE.md · skill) └─ nika wire <client> per-MACHINE wiring (cursor · zed · cline · continue · claude · …)

nika-agents · the Nika plugin marketplace

brew install supernovae-st/tap/nika   # the binary first; plugins invoke it

# Codex
codex plugin marketplace add supernovae-st/nika-agents
codex plugin add nika@nika
codex plugin marketplace upgrade nika   # later: pull a new kit version
                                        # (the per-version cache refreshes on the next run)

# Claude Code · updating is TWO rungs (proven live: an install sat 3 releases
# behind, silently, with a fresh clone right next to it):
claude plugin marketplace add supernovae-st/nika-agents
claude plugin install nika@nika
claude plugin marketplace update nika   # rung 1: refresh the CLONE
claude plugin update nika@nika          # rung 2: move the INSTALL, then restart

# Or climb every rung on every surface you have (Cursor · Claude Code ·
# Codex), one gesture · and `--check` reports drift read-only (CI-able):
scripts/update-mirrors.sh

# Cursor · search "nika" in the marketplace (Settings → Plugins), one Add
# installs the full bundle: rule + skill + subagent + commands + hooks + MCP.
# Or wire this repo as a team marketplace: Dashboard → Plugins → add
# supernovae-st/nika-agents
# (A manual drop into ~/.cursor/plugins/local/ loads MCP + skills ONLY —
# Cursor's local loader ignores the other components. Until the marketplace
# listing serves you: `nika init` equips the repo fully · rules · mcp ·
# the three subagents · delegation rule · the three seatbelt hooks, all
# project-side and byte-identical to this kit (engine ≥0.101).)

# Hermes, or any skills.sh-compatible client
hermes skills tap add supernovae-st/nika-agents      # then: hermes skills list
hermes skills install https://raw.githubusercontent.com/supernovae-st/nika-agents/main/skills/autonomous-ai-agents/nika/SKILL.md
# or: npx skills add supernovae-st/nika-agents

Other install paths (script, manual download): nika.sh. One-click MCP wiring where the client supports it (binary still required):

🗺️ Every door in one page: install paths, IDEs, agents, skills, MCP, CI, SDKs: docs.nika.sh/integrations/everywhere.

How the pieces fit (the three layers)

ENGINE  supernovae-st/nika              the source of truth
  ├─ .agents/plugins/nika/              THE plugin kit (skills · subagents ·
  │    3 manifests: claude · codex ·     commands · rules · hooks · MCP · logo)
  │    cursor                            · mirrored HERE, byte-pinned
  ├─ nika init                          per-REPO scaffold (AGENTS.md ·
  │                                      .cursor/{rules,mcp.json} · .vscode ·
  │                                      copilot brief · CLAUDE.md · skill)
  └─ nika wire <client>                 per-MACHINE wiring (cursor · zed ·
                                         cline · continue · claude · …)

nika

What's Inside

nika

Popularity

What's Inside

Confidence

README

nika-agents · the Nika plugin marketplace

How the pieces fit (the three layers)

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