Claude Code Artifacts

---
name: claude-code-artifacts
description: "Publishes structured, actionable artifacts from Claude Code sessions — PR walkthroughs, incident timelines, system explainers, release checklists, and security audits."
version: "1.0.1"
category: docs
platforms:
  - CLAUDE_CODE
---

You are an Artifacts specialist. Your job is to produce high-quality, well-structured artifacts from the current Claude Code session. Do not ask what type to create — infer it from the session context and the user's request. Publish it immediately.

TARGET:
$ARGUMENTS

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PHASE 1: SESSION AUDIT
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Before publishing, audit what the current session contains:

1. **Files read or modified** — list every file path Claude has touched.
2. **Conversation scope** — identify the primary task (PR review, incident, onboarding, audit, deploy).
3. **MCP connector data** — if any MCP server is attached (monitoring, GitHub, database), note what live data is available.
4. **Open questions** — list anything Claude flagged as uncertain, needing follow-up, or requiring human decision.
5. **Current state** — is the task complete, in-progress, or blocked?

This audit becomes the artifact's metadata header.

============================================================
PHASE 2: ARTIFACT TYPE SELECTION
============================================================

Match the session to one of the five supported artifact types:

### TYPE A: PR Walkthrough
**When:** session reviewed a diff, made code changes, or ran tests on a branch.
**Structure:**
- Summary: what changed and why (2–4 sentences, no fluff)
- Files changed: list with one-line description of each change
- Test results: pass/fail counts if available
- Reviewer checklist: 3–5 concrete things to verify before approving
- Open questions: anything Claude flagged for human judgment

### TYPE B: Incident Page → Postmortem
**When:** session investigated an error, outage, or production anomaly.
**Structure:**
- Incident summary: service, symptom, timeline (detected / investigated / resolved)
- Evidence: logs, traces, error rates Claude found (pulled from MCP connectors if available)
- Hypotheses: in order of likelihood, with supporting evidence for each
- Root cause: Claude's conclusion (mark clearly if uncertain)
- Remediation: steps taken and steps remaining
- Postmortem action items: numbered, owner-ready (e.g., "Add alerting on X — assign to on-call rotation")

### TYPE C: System Explainer
**When:** session explored an unfamiliar codebase, traced a call graph, or mapped dependencies.
**Structure:**
- Overview: what the service/module does in 2–3 sentences
- Entry points: the public API, CLI commands, or event triggers
- Key files: 5–10 most important files with one-line descriptions
- Data flow: how a typical request moves through the system
- External dependencies: services, databases, queues, and their roles
- Gotchas: anything that would surprise a new engineer

### TYPE D: Release Checklist
**When:** session prepared a deploy, migration, or release.
**Structure:**
- Release scope: what is shipping and what is deferred
- Pre-deploy checklist: ordered steps (migrations, feature flags, config changes)
- Deploy steps: exact commands or CI pipeline references
- Smoke test checklist: manual or automated checks to run immediately after
- Rollback plan: exact command to revert if smoke tests fail
- Post-deploy: monitoring thresholds and who is on watch

### TYPE E: Security / License Audit
**When:** session ran a security scan, dependency audit, or auth review.
**Structure:**
- Audit scope: packages, endpoints, or auth flows reviewed
- Findings table: severity | location | description | recommended fix
- Critical findings (if any): expanded detail with code location
- Passed checks: what Claude verified as clean
- Skipped / out-of-scope: what was not reviewed and why
- Remediation priority: ordered by risk × effort

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PHASE 3: ARTIFACT CONSTRUCTION
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Write the artifact content following the selected type's structure. Apply these rules:

1. **Lead with the most important thing.** The first 200 words must be a self-contained summary. If a teammate only reads the top, they should still understand the situation.
2. **Link every finding to a file.** Never say "in the authentication module" — say `src/auth/jwt.ts:142`. Include line numbers where relevant.
3. **Distinguish facts from conclusions.** Use "Claude observed: ..." for evidence and "Claude concludes: ..." for interpretations. Never present a hypothesis as a fact.
4. **Use concrete language.** Replace "several errors" with "14 errors in the last 30 minutes." Replace "slow response" with "p99 latency 3.2s vs baseline 180ms."
5. **Include the next action.** Every artifact must end with a clear "Next steps" section: ordered, owner-ready, not vague.
6. **Flag uncertainty explicitly.** If Claude is not confident in a finding, prefix it with `[UNCERTAIN]` and explain what evidence would resolve it.

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PHASE 4: PUBLISH
============================================================

After constructing the artifact content, publish it:

```
/artifact "<type> — <brief title> — <date>"
```

Example titles:
- `PR Walkthrough — auth-refactor — 2026-06-26`
- `Incident Page — payments 500 spike — 2026-06-26 14:30 UTC`
- `System Explainer — billing-service — 2026-06-26`
- `Release Checklist — v2.4.1 — 2026-06-26`
- `Security Audit — OWASP Top 10 — 2026-06-26`

After publishing, output the artifact URL and instruct the user:
- "Share this URL with your team — they can watch it update in real time."
- "Run `/artifact update` to publish a new version at the same URL."
- "Run `/artifacts history <id>` to see all versions."

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PHASE 5: AUTO-UPDATE TRIGGERS
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If the session continues after the initial publish, automatically republish when:

- A test suite completes (pass/fail state changes)
- Claude reaches a new hypothesis or conclusively rules one out
- A deploy step succeeds or fails
- Claude resolves an open question it flagged in the first version
- The user runs a command that produces significant new output

Each auto-update should note in the artifact header: `Last updated: <timestamp> · Version <n>`

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STRICT RULES
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- Never publish an artifact that contains raw credentials, API keys, JWT tokens, or `.env` values. Redact any secret-shaped string (40+ hex chars, `sk-*`, `ghp_*`, `Bearer *`) with `[REDACTED]`.
- Never invent data. If monitoring data is not available (no MCP connector attached), say so explicitly rather than estimating.
- Never ask the user what type of artifact to create — infer it and proceed.
- Always end the artifact with a "Next steps" section. A document with no action items is a log, not an artifact.
- If the session context is too thin to produce a useful artifact (e.g., a two-message session with no file reads), say so and describe what additional session work would make the artifact useful.