# Prd Impact Map

> >-

- **Type:** Skill
- **Install:** `agentstack add skill-drivestream-lab-prayog-skills-prd-impact-map`
- **Verified:** Yes — security-reviewed for prompt injection and unsafe behavior
- **Seller:** [drivestream-lab](https://agentstack.voostack.com/s/drivestream-lab)
- **Installs:** 0
- **Category:** [Agent Skills](https://agentstack.voostack.com/c/agent-skills)
- **Latest version:** 0.1.0
- **License:** MIT
- **Upstream author:** [drivestream-lab](https://github.com/drivestream-lab)
- **Source:** https://github.com/drivestream-lab/prayog-skills/tree/main/skills/requirements/prd-impact-map

## Install

```sh
agentstack add skill-drivestream-lab-prayog-skills-prd-impact-map
```

Requires the [AgentStack CLI](https://agentstack.voostack.com/docs/cli). Works with Claude Code, Cursor, and any MCP-compatible agent.

## About

# PRD impact map

Identify which repos are affected by a PRD and produce an impact map for
tech lead confirmation. **Do not open spec PRs in app repos** — engineering
opens those after tech lead confirms the map.

## NON-NEGOTIABLE

1. Read `config/service-catalog.yaml` before reading the PRD. Understand what
   each service owns before matching.
2. Match PRD capabilities to service `description` and `owns` fields
   semantically — do not rely on keyword matching alone.
3. Include transitively affected repos via `depends_on` chains. If repo B
   depends on repo A and the PRD touches A, flag B as potentially affected.
4. Explicitly list repos that are **not** affected and why — this is as
   important as the affected list.
5. Mark the impact map as **requiring tech lead confirmation** — do not
   treat it as authoritative without LGTM.

## Inputs

1. **PRD** — (REQUIRED) `prd/INIT-{id}.md` in `-meta`
2. **Service catalog** — (REQUIRED) `config/service-catalog.yaml` in `-meta`
3. **Meta PRD PR body** — (OPTIONAL) PM's description of initiative scope

## Process

1. **T0 Gather** — PRD + service-catalog.yaml
2. **T1 Understand** — list PRD capability areas (data flows, user actions,
   integrations, storage, auth, notifications, etc.)
3. **T2 Match** — for each capability, match to service `description` + `owns`;
   include transitive via `depends_on`
4. **T3 Order** — derive build/merge order from `depends_on` graph
5. **T4 Output** — produce impact map comment body
6. **T5 Post** — add as PR comment on the open meta PRD PR

## Output format

Post as a PR comment on the meta PRD PR (not committed as a file).

```markdown
## Impact map — {INIT-id}
_Generated by /prd-impact-map — {date}_

### Affected services

| Service | Repo | Why | Team | Spec to create |
|---------|------|-----|------|---------------|
| {name} | {org}/{repo} | {capability matched} | @{org}/{team} | INIT-{id}-{slug}.md |

### Transitively affected (via depends_on)

| Service | Depends on | Potential impact |
|---------|-----------|-----------------|

### Not affected

| Service | Reason |
|---------|--------|

### Suggested merge/build order
{repo-A} → {repo-B} → {repo-C}

### Confidence
| Match | Confidence | Notes |
|-------|-----------|-------|
| {service} | High/Medium/Low | {rationale} |

---
**@{tech-lead}** — please confirm or correct before engineering opens spec PRs.
Review deadline: 2 business days.
```

## Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

- **Author:** [drivestream-lab](https://github.com/drivestream-lab)
- **Source:** [drivestream-lab/prayog-skills](https://github.com/drivestream-lab/prayog-skills)
- **License:** MIT

Install and usage instructions live in the source repository linked above.

## Pricing

- **Free** — Free

## Security capabilities

Automated source analysis of v0.1.0 — what this tool can access:

- **Network access:** no
- **Filesystem access:** no
- **Shell / process execution:** no
- **Environment & secrets:** no
- **Dynamic code execution:** no

*"Yes" means the capability is present in the source — more access means more to trust, not that it is unsafe.*


## Versions

- **0.1.0** — security scan: passed — Imported from the upstream source.

## Links

- Listing page: https://agentstack.voostack.com/l/skill-drivestream-lab-prayog-skills-prd-impact-map
- Seller: https://agentstack.voostack.com/s/drivestream-lab
- Browse the marketplace: https://agentstack.voostack.com/browse

---
Listed on AgentStack — the marketplace for AI agent skills and MCP servers. Every listing is security-reviewed. Creators keep 70%.