How do I install the Ns Harness skill?

Run npx skillmds@latest add nextstage-brasil/ns-harness in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Ns Harness safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Ns Harness?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Ns Harness free to use?

Yes. Installing skills from SkillMD is free. This skill is licensed under Apache-2.

Who published Ns Harness?

nextstage-brasil (@nextstage-brasil) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Ns Harness by nextstage-brasil — Agent Skill

Name: Ns Harness
Author: nextstage-brasil

Ns Harness

(NS) Harness boot + brownfield prepare. Triggers: /ns-harness, prepare this repo, harness prepare, generate architecture rules, architecture-rules.md, write AGENTS.md, reverse-engineer codebase, engenharia reversa, brownfield map, bootstrap brownfield, ns-harness-prepare, ns-architecture-rules, ns-agent-generator, ns-codebase-reverse-spec, ns-bootstrap-brownfield. Do NOT: coding, SDD, GitLab.

File contents

NextStage Harness

Project harness face. Other catalog skills point here for session boot + artifact paths. Also runs brownfield onboarding via local references — no separate prepare/architecture/agents/reverse/brownfield skills.

Consumer skill convention: point to references/session-boot.md; require Session boot (blocking) before other steps. Do not duplicate boot sequence in skill bodies or frontmatter description.

Dispatch (this skill as face)

Session boot (references/session-boot.md) first — pick one row. First matching signal wins.

Signal	Reference
Prepare this repo / harness prepare / onboard brownfield / full prepare / stale context after refactor	`references/prepare.md` (four workers in order)
Architecture rules / constitution / "how this repo works for the AI" / `.nextstage-harness/rules/architecture-rules.md`	`references/architecture-rules-generator.md`
Write/refresh `AGENTS.md` / `CLAUDE.md` / agent entry	`references/agents-md.md`
Reverse-engineer / engenharia reversa / business rules from code	`references/codebase-reverse-spec.md`
Brownfield map / analyze existing project (map only)	`references/bootstrap-brownfield.md`
`/ns-harness` with no qualifier	Show this table; ask once if intent unclear

Bare /ns-harness prepare this repo is full prepare.md. Do not send user to retired slash names.

Read chosen reference in full; follow it. Do not improvise parallel workflow.

Shared references (other skills)

File	When to read
`references/session-boot.md`	Session boot (blocking), rules paths, MCP GitLab pointers
`references/rules-sync.md`	Canonical rules layout, manifest schema, `harness sync`
`references/artifact-layout.md`	SDD artifact paths under `docs/versions/`, living specs, handoff rules
`references/code-skill-routing.md`	Entry priority + handoffs between implementation skills
`references/subagent-dispatch.md`	MUST spawn exact `{name}` adapter (YAML `model`). FORBIDDEN child Task `inherit` / platform `coder` / `reviewer`
`references/agent-artifact-compress.md`	Pre-save on agent-facing drafts only (caveman ultra; never chat)
`references/project-skill-authoring.md`	Author project-local skills — requires Anthropics `skill-creator` + `harness sync`

Read only file(s) the active workflow names. Do not assume stack unless detected in rules or context.

---name: ns-harnessdescription: (NS) Harness boot + brownfield prepare. Triggers: /ns-harness, prepare this repo, harness prepare, generate architecture rules, architecture-rules.md, write AGENTS.md, reverse-engineer codebase, engenharia reversa, brownfield map, bootstrap brownfield, ns-harness-prepare, ns-architecture-rules, ns-agent-generator, ns-codebase-reverse-spec, ns-bootstrap-brownfield. Do NOT: coding, SDD, GitLab.license: Apache-2.0---# NextStage HarnessProject harness face. Other catalog skills point here for **session boot** + artifact paths. Also runs brownfield onboarding via local references — no separate prepare/architecture/agents/reverse/brownfield skills.**Consumer skill convention:** point to `references/session-boot.md`; require **Session boot (blocking)** before other steps. Do not duplicate boot sequence in skill bodies or frontmatter `description`.## Dispatch (this skill as face)**Session boot** (`references/session-boot.md`) first — pick **one** row. First matching signal wins.| Signal | Reference || ------ | --------- || Prepare this repo / harness prepare / onboard brownfield / full prepare / stale context after refactor | `references/prepare.md` (four workers in order) || Architecture rules / constitution / "how this repo works for the AI" / `.nextstage-harness/rules/architecture-rules.md` | `references/architecture-rules-generator.md` || Write/refresh `AGENTS.md` / `CLAUDE.md` / agent entry | `references/agents-md.md` || Reverse-engineer / engenharia reversa / business rules from code | `references/codebase-reverse-spec.md` || Brownfield map / analyze existing project (map only) | `references/bootstrap-brownfield.md` || `/ns-harness` with no qualifier | Show this table; ask once if intent unclear |Bare `/ns-harness prepare this repo` **is** full `prepare.md`. Do **not** send user to retired slash names.Read chosen reference **in full**; follow it. Do not improvise parallel workflow.## Shared references (other skills)| File | When to read || ---- | ------------ || `references/session-boot.md` | Session boot (blocking), rules paths, MCP GitLab pointers || `references/rules-sync.md` | Canonical rules layout, manifest schema, `harness sync` || `references/artifact-layout.md` | SDD artifact paths under `docs/versions/`, living specs, handoff rules || `references/code-skill-routing.md` | Entry priority + handoffs between implementation skills || `references/subagent-dispatch.md` | **MUST** spawn exact `{name}` adapter (YAML `model`). **FORBIDDEN** child Task `inherit` / platform `coder` / `reviewer` || `references/agent-artifact-compress.md` | **Pre-save** on agent-facing drafts only (caveman ultra; never chat) || `references/project-skill-authoring.md` | Author project-local skills — requires Anthropics `skill-creator` + `harness sync` |Read only file(s) the active workflow names. Do not assume stack unless detected in rules or context.

Frequently asked questions