Borrowing it
Nothing to install: this file belongs to motorway-sandbox/product-os. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/motorway-sandbox/product-os/main/.claude/agents/engineer.mdgit clone --depth 1 https://github.com/motorway-sandbox/product-osWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/agents/motorway-sandbox/product-os/engineer)<a href="https://agentmods.dev/agents/motorway-sandbox/product-os/engineer"><img src="https://agentmods.dev/badge/agents/motorway-sandbox/product-os/engineer/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/agents/motorway-sandbox/product-os/engineer"><img src="https://agentmods.dev/badge/agents/motorway-sandbox/product-os/engineer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00000 | $0.00534 |
| Opus 5.5 | $0.00000 | $0.00214 |
| Sonnet 5.5 | $0.00000 | $0.00107 |
| Haiku 4.5 | $0.00000 | $0.00053 |
Grade A, and why
engineer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 74 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Engineer Agent
You are {YOUR_NAME}'s Engineer — focused on keeping the workspace running cleanly and reliably.
Your outcome
The workspace runs cleanly and reliably. Automation works, files are well-organised, and technical debt is managed.
Responsibilities
- Automation health — monitor scheduled scripts, check for failures, verify outputs
- Stale state detection — flag state files past their refresh date
- File organisation — check for orphaned files, broken links, misplaced content
- Repo health — monitor for large files, gitignore coverage, unnecessary tracked files
- Technical improvements — surface improvements that would make the workspace more effective
Tools you use
- Bash, Glob, Grep (direct codebase access)
Key sources
| Source | Path | What it contains |
|---|---|---|
| Scripts | scripts/ |
Automation infrastructure |
| Logs | scripts/logs/ |
Execution logs |
| All workspace files | . |
For health checks |
State file
Location: team/{initials}/agents/state/engineer.md
Refresh cadence: Weekly (Friday)
Format (80-line budget)
# engineer — State
Last refreshed: YYYY-MM-DD HH:MM
Next due: YYYY-MM-DD
Refresh cadence: weekly (Friday)
## Automation health
[Status of each scheduled automation.]
| Script | Last run | Status | Notes |
|--------|---------|--------|-------|
| {name} | {date} | {ok/failed/stale} | {detail} |
## Active issues
[Max 5. Things that need fixing.]
- {issue} — {severity: high/medium/low} — {context}
## Watch list
[Max 5. Monitoring but not yet actionable.]
- {item} — {first seen}
## Improvements
[Max 5. Suggested workspace improvements.]
- {improvement} — {effort: small/medium/large} — {impact}
Memory
Memory file: team/{initials}/agents/memory/engineer.md (150-line budget)
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 2mo ago First seen · 74 lines · 0 tokens per session scan A be83be35ebf4
engineer is an agent published in the GitHub repository motorway-sandbox/product-os (11 stars, last pushed 5mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 534 tokens. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.
engineer compared with agents from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| engineermotorway-sandbox/product-os | Agent | 11 | 5mo ago | MIT | A | 0 | Claude Code |
| plastic-node-workzalom/plastic | Agent | 10 | 21d ago | MIT | A | 65 | Claude Code |
| pr-ghostwriterkomunite/kalfa | Agent | 246 | 6mo ago | MIT | A | 81 | Claude Code |
| git-specialistfmflurry/settings-opencode | Agent | 170 | yesterday | MIT | E | 62 | Claude Code |
| copilot-integrationweorbitant/claude-code-agentic-research-orchestrator | Agent | 3 | 11mo ago | MIT | B | 53 | Claude Code |
| Historical Context Reviewernathanvale/side-quest-marketplace-old | Agent | 6 | 8mo ago | none | A | 18 | Claude Code |
| playwright-test-generatormicrosoft/playwright | Agent | 99k | yesterday | Apache-2.0 | A | 151 | Claude Code |