Product Planner
BuildGreatProducts/builder-os
Vision intake conversation followed by generation of three product documents — docs/product-vision.md (strategy and brand), docs/prd.md (technical spec for coding agents), and…
Define release criteria, deployment environments, and rollback strategies during PRD v0.8 Deployment & Ops.
$ npx skills add mattgierhart/PRD-driven-context-engineering --skill prd-v08-release-planning -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install mattgierhart/PRD-driven-context-engineering prd-v08-release-planning --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/mattgierhart/PRD-driven-context-engineering.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/prd-v08-release-planning .claude/skills/prd-v08-release-planning && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "prd-v08-release-planning" agent skill from https://github.com/mattgierhart/PRD-driven-context-engineering/tree/main/.claude/skills/prd-v08-release-planning into .claude/skills/prd-v08-release-planning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prd-v08-release-planning", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/mattgierhart/PRD-driven-context-engineering/tree/main/.claude/skills/prd-v08-release-planningType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add mattgierhart/PRD-driven-context-engineering --skill prd-v08-release-planning -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install mattgierhart/PRD-driven-context-engineering prd-v08-release-planning --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mattgierhart/PRD-driven-context-engineering.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/prd-v08-release-planning .agents/skills/prd-v08-release-planning && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "prd-v08-release-planning" agent skill from https://github.com/mattgierhart/PRD-driven-context-engineering/tree/main/.claude/skills/prd-v08-release-planning into .agents/skills/prd-v08-release-planning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prd-v08-release-planning", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mattgierhart/PRD-driven-context-engineering --skill prd-v08-release-planning -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install mattgierhart/PRD-driven-context-engineering prd-v08-release-planning --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mattgierhart/PRD-driven-context-engineering.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/prd-v08-release-planning .cursor/skills/prd-v08-release-planning && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "prd-v08-release-planning" agent skill from https://github.com/mattgierhart/PRD-driven-context-engineering/tree/main/.claude/skills/prd-v08-release-planning into .cursor/skills/prd-v08-release-planning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prd-v08-release-planning", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/mattgierhart/PRD-driven-context-engineering.git --path .claude/skills/prd-v08-release-planning--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add mattgierhart/PRD-driven-context-engineering --skill prd-v08-release-planning -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install mattgierhart/PRD-driven-context-engineering prd-v08-release-planning --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mattgierhart/PRD-driven-context-engineering.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/prd-v08-release-planning .gemini/skills/prd-v08-release-planning && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "prd-v08-release-planning" agent skill from https://github.com/mattgierhart/PRD-driven-context-engineering/tree/main/.claude/skills/prd-v08-release-planning into .gemini/skills/prd-v08-release-planning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prd-v08-release-planning", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install mattgierhart/PRD-driven-context-engineering prd-v08-release-planningInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add mattgierhart/PRD-driven-context-engineering --skill prd-v08-release-planning -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/mattgierhart/PRD-driven-context-engineering.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/prd-v08-release-planning .github/skills/prd-v08-release-planning && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "prd-v08-release-planning" agent skill from https://github.com/mattgierhart/PRD-driven-context-engineering/tree/main/.claude/skills/prd-v08-release-planning into .github/skills/prd-v08-release-planning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prd-v08-release-planning", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add mattgierhart/PRD-driven-context-engineering --skill prd-v08-release-planning -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install mattgierhart/PRD-driven-context-engineering prd-v08-release-planning --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/mattgierhart/PRD-driven-context-engineering.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/prd-v08-release-planning .opencode/skills/prd-v08-release-planning && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "prd-v08-release-planning" agent skill from https://github.com/mattgierhart/PRD-driven-context-engineering/tree/main/.claude/skills/prd-v08-release-planning into .opencode/skills/prd-v08-release-planning/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "prd-v08-release-planning", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
prd-v08-release-planningDefine release criteria, deployment environments, and rollback strategies during PRD v0.8 Deployment & Ops.
Prd V08 Release Planning is an agent skill from mattgierhart/PRD-driven-context-engineering. Define release criteria, deployment environments, and rollback strategies during PRD v0.8 Deployment & Ops. Triggers on requests to plan releases, define deployment criteria, or when user asks "how do we deploy?", "release criteria", "deployment plan", "rollback strategy", "go-live checklist". Outputs DEP- entries with deployment steps and release criteria.
Its SKILL.md is about 3.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files and assets (for example `assets/dep-template.md`, `references/deployment-strategies.md` and `references/examples.md`).
It sits in Product & Project Management, covering PRD writing, Product roadmapping and Deployment. The repository describes itself as: PRD-Led Context Engineering — Memory as Infrastructure. An ontology layer for product teams building products that solve real problems — with AI agents that remember. Gated PRD… The licence is MIT.
6 steps, taken from the first numbered list in SKILL.md.
Read from SKILL.md and the folder at commit 30ed1b0. It shows what the files ask for, not the result of running them.
Pre-approves these tools, so the agent can use them without asking each time:
ReadWriteEditGlobGrepBashFrom allowed-tools in the SKILL.md frontmatter.
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Prd V08 Release Planning loads about 3.1k tokens when it runs, and up to ~16k if it reads all its reference files. Until then it costs about 96 tokens; SKILL.md has 796 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
The automated check noted patterns worth knowing about, such as sudo or a known installer.
allowed-tools: Read, Write, Edit, Glob, Grep, BashAutomated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
The full file from mattgierhart/PRD-driven-context-engineering at commit 30ed1b0, republished under its MIT licence (© mattgierhart). 796 words, ~3,065 tokens.
.claude/skills/prd-v08-release-planning/SKILL.md (or your agent's skills folder). This skill also uses 4 other files; get the full folder from GitHub.Position in workflow: v0.7 Implementation Loop → v0.8 Release Planning → v0.8 Runbook Creation
Default is standard. See .claude/rules/08-skill-execution-modes.md for selection logic.
| Mode | What this skill produces |
|---|---|
| quick | Staging→prod only; 3–5 release criteria; one rollback trigger |
| standard | Dev/staging/preview/prod environments; full criteria checklist; multiple rollback triggers; post-deploy validation |
| deep | Full environments + IaC review + canary/blue-green strategy + risk-weighted criteria + post-mortem hooks |
This skill requires prior work from v0.7 Implementation Loop and v0.6-v0.9:
This skill assumes v0.7 Implementation is complete with all EPIC- entries marked Complete and all TEST- passing.
This skill creates/updates:
All DEP- entries are operational contracts, not confidence-based. They are:
Example DEP- entries:
DEP-001: Production Environment Configuration
Type: Environment
Stage: Pre-deploy
Description: AWS production environment setup for application
Name: production
Infrastructure: AWS us-east-1, ECS Fargate, RDS PostgreSQL
Configuration:
- NODE_ENV=production
- LOG_LEVEL=info
- RATE_LIMIT=100/min
- METRICS_COLLECTION=enabled
Secrets: AWS Secrets Manager, rotated monthly
Access: DevOps team (deploy), On-call (read-only access)
Linked IDs: ARC-001 (monolith structure), TECH-005 (AWS)
---
DEP-002: All Tests Pass in Staging
Type: Criteria
Stage: Pre-deploy
Description: Complete test suite must pass in staging environment before production release
Requirement: All TEST- entries pass with >95% success rate, including smoke tests and E2E tests
Verification: CI/CD pipeline reports green; test report generated and reviewed
Blocker: Yes — Release cannot proceed if this fails
Owner: QA Lead
Linked IDs: TEST-001 to TEST-050 (from EPIC-01 through EPIC-07)
---
DEP-003: Error Rate Rollback Trigger
Type: Rollback
Stage: Post-deploy
Description: Automatic rollback if error rate exceeds baseline post-deployment
Trigger: 5xx error rate exceeds pre-deployment baseline
Threshold: >2% of requests for 5 minutes (currently 0.5% baseline from MON-001)
Procedure:
1. Alert on-call engineer (PagerDuty)
2. Pause traffic to new version
3. Revert to pre-deploy git tag
4. Investigate root cause
Notification: #incidents Slack, PagerDuty, Engineering Lead
Linked IDs: MON-001 (error rate metric), RUN-002 (rollback procedure), API-001–020 (endpoints affected)
---
DEP-004: Post-Deployment Smoke Tests
Type: Validation
Stage: Post-deploy
Description: Automated smoke tests to verify critical user journeys work post-deployment
Check: All critical UJ- (UJ-000, UJ-001, UJ-005, UJ-010) complete successfully
Method: Automated (tests/e2e/smoke.spec.ts) + manual spot-check
Success Criteria: All journeys complete <2 seconds, no auth failures, data persists
Escalation: If smoke tests fail, execute DEP-003 rollback and investigate
Linked IDs: UJ-000/001/005/010 (critical journeys), TEST-050 (E2E suite)A release is not "code that works locally." It is a contract between development and operations—a formal handoff that includes everything needed to deploy, validate, and recover.
| Component | Purpose | Output |
|---|---|---|
| Deployment Environment | Where code runs | DEP- (environment config) |
| Release Criteria | What must be true to deploy | DEP- (checklist) |
| Rollback Triggers | When to revert | DEP- (conditions) |
| Validation Steps | How to verify success | DEP- (post-deploy checks) |
Inventory completed EPICs
Define deployment environments
Establish release criteria
Define rollback triggers
Document validation steps
Create DEP- entries with full traceability
DEP-XXX: [Deployment Item Title]
Type: [Environment | Criteria | Rollback | Validation | Step]
Stage: [Pre-deploy | Deploy | Post-deploy | Rollback]
Description: [What this deployment item covers]
For Environment Type:
Name: [staging | production | preview]
Infrastructure: [Cloud provider, region, resources]
Configuration: [Environment-specific settings]
Secrets: [How secrets are managed]
Access: [Who can deploy, who can access]
For Criteria Type:
Requirement: [What must be true]
Verification: [How to check this]
Blocker: [Yes | No] — Does failure block deploy?
Owner: [Who verifies]
For Rollback Type:
Trigger: [What condition initiates rollback]
Threshold: [Specific metric or condition]
Procedure: [How to execute rollback]
Notification: [Who to alert]
For Validation Type:
Check: [What to verify post-deploy]
Method: [Manual | Automated | Both]
Success Criteria: [Expected result]
Escalation: [What if validation fails]
Linked IDs: [EPIC-XXX, API-XXX, TEST-XXX related]Example DEP- entries:
DEP-001: Production Environment Configuration
Type: Environment
Stage: Pre-deploy
Description: AWS production environment setup for main application
Name: production
Infrastructure: AWS us-east-1, ECS Fargate, RDS PostgreSQL
Configuration:
- NODE_ENV=production
- LOG_LEVEL=info
- RATE_LIMIT=100/min
Secrets: AWS Secrets Manager, rotated monthly
Access: DevOps team (deploy), On-call (read-only)
Linked IDs: ARC-001, TECH-005DEP-002: All Tests Pass in Staging
Type: Criteria
Stage: Pre-deploy
Description: Complete test suite must pass in staging environment
Requirement: All TEST- entries pass with >95% success rate
Verification: CI/CD pipeline green status, test report review
Blocker: Yes
Owner: QA Lead
Linked IDs: TEST-001 to TEST-050DEP-003: Error Rate Rollback Trigger
Type: Rollback
Stage: Post-deploy
Description: Automatic rollback if error rate exceeds threshold
Trigger: 5xx error rate exceeds baseline
Threshold: >2% of requests for 5 minutes
Procedure:
1. Alert on-call engineer
2. Pause traffic to new version (if canary)
3. Revert to previous known-good version
4. Investigate root cause
Notification: #incidents Slack, PagerDuty
Linked IDs: MON-001, RUN-005| Stage | Environment | Purpose | Gate |
|---|---|---|---|
| 1 | Development | Engineer testing | Tests pass locally |
| 2 | Staging | Integration testing | All TEST- pass |
| 3 | Preview | Stakeholder review | Sign-off from PM |
| 4 | Production | Live users | All DEP- criteria met |
| Category | Examples | Priority |
|---|---|---|
| Functional | Tests pass, features work | Must-have |
| Performance | Latency <200ms, throughput >100rps | Must-have |
| Security | No critical vulns, secrets rotated | Must-have |
| Operational | Runbooks ready, monitoring active | Should-have |
| Documentation | Release notes, API docs updated | Should-have |
| Pattern | When to Use | Complexity |
|---|---|---|
| Blue-Green | Need instant rollback, can afford 2x infra | Medium |
| Canary | Gradual rollout, catch issues early | High |
| Rolling | Zero-downtime, standard approach | Low |
| Feature Flags | Decouple deploy from release | Medium |
| Pattern | Signal | Fix |
|---|---|---|
| Deploy and pray | No validation steps defined | Add DEP- validation entries |
| Manual everything | No automation, error-prone | Automate repeatable steps |
| No rollback plan | "We'll figure it out" | Define triggers and procedures upfront |
| Environment drift | Staging doesn't match production | Infrastructure as code, sync configs |
| Missing criteria | "It works on my machine" | Formal DEP- criteria checklist |
| Unclear ownership | No one knows who approves | Assign owner to each DEP- |
Before proceeding to Runbook Creation:
| Consumer | What It Uses | Example |
|---|---|---|
| Runbook Creation | DEP- rollback procedures become runbook inputs | DEP-003 → RUN-005 |
| Monitoring Setup | DEP- thresholds inform alerting | DEP-003 (2% error) → MON-001 |
| v0.9 GTM Strategy | Release readiness gates launch | All DEP- met → GTM-001 |
| EPIC- Future Releases | DEP- becomes template for next release | DEP-001 reused |
references/environment-examples.mdassets/dep-template.mdreferences/rollback-guide.md© mattgierhart, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
SKILL.md and 4 other files (references, assets) in .claude/skills/prd-v08-release-planning of mattgierhart/PRD-driven-context-engineering.
Open the folder on GitHubat commit 30ed1b0
Prd V08 Release Planning next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Prd V08 Release Planning this skillmattgierhart/PRD-driven-context-engineering | 180 | — | ~3.1k | Automated safety check: Notes | MIT | |
| Product PlannerBuildGreatProducts/builder-os | 228 | — | ~4.6k | Automated safety check: Pass | MIT | |
| Build MvpBuildGreatProducts/builder-os | 228 | — | ~1.2k | Automated safety check: Notes | MIT | |
| Memstack Product Mvp Scopercwinvestments/memstack | 423 | — | ~2.4k | Automated safety check: Pass | Proprietary | |
| Sveltekit WebappLeoYeAI/openclaw-master-skills | 2.2k | — | ~5.2k | Automated safety check: Notes | MIT | |
| Write A Specinkeep/open-knowledge | 4.5k | — | ~4.9k | Automated safety check: Pass | GPL-3.0 |
BuildGreatProducts/builder-os
Vision intake conversation followed by generation of three product documents — docs/product-vision.md (strategy and brand), docs/prd.md (technical spec for coding agents), and…
BuildGreatProducts/builder-os
Use inside a product repository when the user wants the full MVP built from their BuilderOS spec documents.
cwinvestments/memstack
A skill your agent uses when the user says 'MVP', 'minimum viable product', 'scope the MVP', 'what should I build first', 'strip to core', or needs to define the smallest build that validates a…
LeoYeAI/openclaw-master-skills
Scaffold and configure a production-ready SvelteKit PWA with opinionated defaults.
inkeep/open-knowledge
Scope a feature end to end and write an implementation spec under specs/ from an accepted proposal — current-system mapping, goals/non-goals, a Decision Log for one-way-door choices, a live Open…
aj-geddes/claude-code-bmad-skills
BROWNFIELD planning input. An agent skill from aj-geddes/claude-code-bmad-skills.
mattgierhart/PRD-driven-context-engineering
Validates gate criteria before PRD lifecycle advancement by delegating to the readiness scoring pipeline (scripts/readiness.py).
mattgierhart/PRD-driven-context-engineering
Extracts durable insights from temp/ files to SoT during EPIC Phase E.
mattgierhart/PRD-driven-context-engineering
Validates and registers new SoT IDs with cross-reference integrity.
mattgierhart/PRD-driven-context-engineering
Creates new Source of Truth (SoT) files when existing templates don't fit your needs.
mattgierhart/PRD-driven-context-engineering
Transform vague product ideas into evidence-anchored problem statements for PRD v0.1 Spark.
mattgierhart/PRD-driven-context-engineering
Transform validated pain points into articulated user value statements for PRD v0.1 Spark.
Define release criteria, deployment environments, and rollback strategies during PRD v0.8 Deployment & Ops. Prd V08 Release Planning is an agent skill from mattgierhart/PRD-driven-context-engineering.8 Deployment & Ops.
Prd V08 Release Planning fits situations like: requests to plan releases; define deployment criteria; user asks how do we deploy?; release criteria.
Run `npx skills add mattgierhart/PRD-driven-context-engineering --skill prd-v08-release-planning -a claude-code`. Or copy the skill folder (.claude/skills/prd-v08-release-planning in mattgierhart/PRD-driven-context-engineering) into .claude/skills/prd-v08-release-planning in your project. Claude Code loads it when a task matches its description.
Run `npx skills add mattgierhart/PRD-driven-context-engineering --skill prd-v08-release-planning -a codex`. Or copy the skill folder (.claude/skills/prd-v08-release-planning in mattgierhart/PRD-driven-context-engineering) into .agents/skills/prd-v08-release-planning in your project. Codex loads it when a task matches its description.
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add mattgierhart/PRD-driven-context-engineering --skill prd-v08-release-planning -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/prd-v08-release-planning, .gemini/skills/prd-v08-release-planning, .github/skills/prd-v08-release-planning and .opencode/skills/prd-v08-release-planning in your project.
SKILL.md names no scripts, command-line tools or credentials: Prd V08 Release Planning is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Write, Edit, Glob, Grep, Bash.
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
Prd V08 Release Planning is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
About 3.1k tokens (SKILL.md is roughly 12k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 13k tokens, read only when the agent opens those files.
Skills that share tags, products or a category with Prd V08 Release Planning: Product Planner (BuildGreatProducts/builder-os, 228 stars), Build Mvp (BuildGreatProducts/builder-os, 228 stars), Memstack Product Mvp Scoper (cwinvestments/memstack, 423 stars) and Sveltekit Webapp (LeoYeAI/openclaw-master-skills, 2.2k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
mattgierhart (a GitHub user) maintains it in mattgierhart/PRD-driven-context-engineering, which has 180 GitHub stars. The repository holds 45 skills in this directory. The repository was last updated on August 31, 2026.
Source: mattgierhart/PRD-driven-context-engineering on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.