Best for
- User describes a feature vaguely ("make it do X")
- Planning a new epic or large feature
- Evaluating whether a request is feasible with current capabilities
nexus-substrate/nexus-agents/skills/requirements-gathering/SKILL.md
Extract structured requirements from vague user requests. Decompose ideas into user stories with acceptance criteria, map to available capabilities, and identify gaps. Triggers on "requirements", "user stories", "what do I need", "break down this request", "analyze this feature".
Decision brief
Extract structured requirements from vague user requests. Decompose ideas into user stories with acceptance criteria, map to available capabilities, and identify gaps.
Compatibility matrix
| Platform | Status | Evidence | What to check |
|---|---|---|---|
| Codex | Not declared | No explicit evidence | Portability before use |
| Claude Code | Not declared | No explicit evidence | Portability before use |
| Cursor | Not declared | No explicit evidence | Portability before use |
| Gemini CLI | Not declared | No explicit evidence | Portability before use |
Installation
The source command is displayed only when detected. A safe inspection prompt is always available so your agent can explain every action before execution.
npx skills add https://github.com/nexus-substrate/nexus-agents --skill "skills/requirements-gathering"Inspect the Agent Skill "requirements-gathering" from https://github.com/nexus-substrate/nexus-agents/blob/d7d6eeb0b286dd38ab8ede233a47d92326399097/skills/requirements-gathering/SKILL.md at commit d7d6eeb0b286dd38ab8ede233a47d92326399097. List every install step, command, network request, credential, file read/write, external action, and rollback step. Explain whether it fits my task. Do not install or execute anything until I approve.
Workflow
1. Parse the user's raw input for intent, scope, and stakeholders 2. Identify ambiguities — what's unclear or underspecified? 3. Classify the request type: feature, improvement, fix, research, infrastructure 4. Assess complexity: simple (1-2 steps), moderate (3-5), complex (6+)
1. Parse the user's raw input for intent, scope, and stakeholders 2. Identify ambiguities — what's unclear or underspecified? 3. Classify the request type: feature, improvement, fix, research, infrastructure 4. Assess complexity: simple (1-2 steps), moderate (3-5), complex (6+)
Functional Requirements — What the system must do Non-functional Requirements — Performance, security, usability constraints Constraints — Technical limitations, timeline, dependencies
Cross-reference requirements against available nexus-agents capabilities:
For each requirement that cannot be fulfilled:
Permission review
No configured static risk pattern was detected
This is not proof of safety. Runtime behavior, indirect dependencies, and hidden external systems are outside the static scan.
Evidence record
| Signal | Value | Evidence type | Meaning |
|---|---|---|---|
| Quality score | 95/100 | Computed | Documentation, specificity, maintenance, and trust rules |
| Repository stars | 18 | Source | Repository attention, not individual Skill quality |
| Compatibility | 0 platforms | Source | Declared in the catalog source record |
| Usage guide | automated source guide | Editorial | Generated or reviewed according to the visible evidence level |
Pinned source
Structure findings as:
Functional Requirements — What the system must do Non-functional Requirements — Performance, security, usability constraints Constraints — Technical limitations, timeline, dependencies
Cross-reference requirements against available nexus-agents capabilities:
| Capability Type | Where to Check |
|---|---|
| MCP Tools (20) | CLAUDE.md MCP Tools Reference table |
| Workflows (9) | src/orchestration/graph/templates/ |
| Expert Roles (9) | src/agents/experts/expert-config.ts |
| CLI Adapters | src/cli-adapters/factory.ts |
| Security Pipeline | src/security/ |
For each requirement that cannot be fulfilled:
Format each requirement as a user story:
As a [role], I want [capability] so that [benefit]
Acceptance Criteria:
- Given [context], When [action], Then [outcome]
- Given [context], When [action], Then [outcome]
Priority: P1/P2/P3/P4
Dependencies: [list]
Summarize the implementation approach:
## Requirements Analysis
### Intent
[1-2 sentence summary of what the user wants]
### User Stories
1. **[Story Title]**
As a [role], I want [capability] so that [benefit]
- AC: [acceptance criteria]
- Priority: [P1-P4]
### Capability Mapping
| Requirement | Available Tool/Workflow | Status |
| ----------- | ----------------------- | --------------- |
| [req] | [tool/workflow/expert] | [available/gap] |
### Gaps Identified
- [Gap description + suggested workaround]
### Recommended Approach
[Phased implementation plan using existing capabilities]
For ambiguous or open-ended requests, run a structured ideation pass before settling on requirements:
Restate the idea in your own words, then ask three sharpening questions:
Then generate 2-3 variations of the request — different scopes, different users, different mechanisms.
For each variation:
Produce a one-pager with: Problem statement, Recommended direction, Key assumptions, MVP scope, Not Doing list. The Not Doing list is the highest-value section — it makes scope decisions explicit.
When the request becomes a multi-task plan, map dependencies before sequencing:
Sequence: serial bottlenecks first, then parallel-safe waves of 3-4 (per .rules/subagent-coordination.md), then late-stage integration tasks.
| Excuse | Counter |
|---|---|
| "The user said X, so we build X" | Users describe solutions; you need the problem. Restate, ask the three sharpening questions. |
| "This is obvious, no need to write it down" | Obvious to whom? Different stakeholders read "obvious" differently. The Not Doing list catches the silent disagreements. |
| "We can figure out scope as we go" | Scope creep is the most expensive bug. Lock the MVP and the Not Doing list before writing code. |
| "The acceptance criterion is 'when it works'" | "Works" is unfalsifiable. The criterion is a test or a user scenario the spec can be measured against. |
| "We don't need to identify dependencies, we'll just hit them" | Hitting dependencies serial costs ~Nx the time vs identified-and-parallelized. Map first, then sequence. |
Frequently asked questions
Extract structured requirements from vague user requests. Decompose ideas into user stories with acceptance criteria, map to available capabilities, and identify gaps.
The source record exposes this install command: npx skills add https://github.com/nexus-substrate/nexus-agents --skill "skills/requirements-gathering". Inspect the command and pinned source before running it.
Alternatives
coreyhaines31/marketingskills
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coreyhaines31/marketingskills
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alirezarezvani/claude-skills
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wanshuiyin/Auto-claude-code-research-in-sleep
Use it for operations and research tasks; the detail page covers purpose, installation, and practical steps.