ZEROCKZEROCK for Dev

Code reviews, docs, tests — handled.
Engineers focus on design and implementation

AI agents in the cloud autonomously execute everything from PR creation to documentation generation. Running securely on AWS domestic servers.

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CHALLENGES

Challenges Development Teams Face

1

Code review overhead slowing down release cycles

2

Insufficient technical documentation leading to knowledge silos

3

Time-consuming legacy code comprehension delaying refactoring

4

Security checks and test creation often deprioritized

40%

of an engineer's time is spent on non-coding tasks

Source: GitHub Octoverse 2024

A DAY WITH ZEROCK

A Day in the Life of a Tech Lead with ZEROCK

09:00

PR reviews, already done

3 PRs from last night already reviewed by Smart Agent. 1 security risk flagged with details.

Smart Agent + GitHub Integration
10:00

Let AI handle the implementation

"Implement API rate limiting with tests and create a PR." Autonomous execution in a cloud sandbox — PR #142 arrives.

Smart Agent + GitHub Integration
13:00

Technical research, done in 30 minutes

"Compile a tech selection report for microservices migration using internal cases and external sources." Knowledge + Deep Research generates the report.

AI Knowledge Base + Deep Research
15:00

Design review meeting, decisions captured

Meeting AI accurately transcribes technical discussions. Design decisions and TODOs are auto-extracted.

Meeting AI
17:00

Documentation, auto-updated

API docs auto-updated from this week's merged PRs. Automatically synced to Notion.

Schedule Automation + Notion
DEV WORKFLOW

Dev Agent Mode Workflow

Delegate development tasks to AI with a terminal-like experience

zerock-dev — Step 1
$ zerock dev "Add validation and error handling to this API endpoint"
Analyzing src/api/users.ts... ✓ Input validation added (zod schema) ✓ Error handling added (try-catch + custom errors) ✓ 8 test cases auto-generated → Created PR #142
zerock-dev — Step 2
$ zerock review PR#142
Reviewing 3 files, +187 -23... ⚠ src/api/users.ts:45 - SQL injection risk ✓ Validation logic is appropriate ✓ Error messages are production-ready → Posted 1 fix suggestion as comment
zerock-dev — Step 3
$ zerock docs --update
Analyzing codebase... ✓ API Reference updated (3 endpoints added) ✓ README.md updated ✓ CHANGELOG.md entry added → Updated docs/ directory
SKILLS FOR DEV

Skills That Empower Dev Teams

AI Code Review

Including security checks

Auto Test Generation

+40% coverage

Auto Documentation

Notion integration

Technical Research Reports

Deep Research

Design Meeting Notes

Meeting AI

GitHub PR Creation

Cloud sandbox

Scheduled Report Generation

Cron execution

80+ more skills available
BEFORE / AFTER

The Transformation

ZEROCK dramatically improves dev team productivity

BEFORE / AFTERBeforeAfterResult
Code ReviewAvg. 2 hours15 minutes87% reduction
Doc Coverage30%90%3x improvement
Deploy Frequency2x/month3x/week6x improvement
Bug DetectionQA phaseDuring codingEarly detection
Test Coverage45%85%+40%
CASE STUDIES

Dev Team Success Stories

SaaS Company D

200 employees (60 engineers)

85% reduction in code review time

Dev Agent Mode handles initial PR reviews, dramatically reducing senior engineer workload. Security risks are caught early, and production incidents have decreased.

— VP of Engineering

Before

Avg. 2 hrs/PR
→

After

15 min/PR

Fintech Company E

500 employees (120 engineers)

Documentation coverage: 30% → 90%

API docs auto-update with code changes, so documentation never goes stale. New member onboarding time halved, and team ramp-up is significantly faster.

— Tech Lead

Before

30% coverage
→

After

90% coverage

Manufacturing Co. F (DX Division)

1,200 employees (30 in IT)

Deploy frequency: 2x/month → 3x/week

Auto-generated tests boosted coverage from 45% to 85%, greatly reducing deployment anxiety. Running entirely on AWS domestic servers meets our manufacturing security requirements.

— DX Division Director

Before

2x/month deploy
→

After

3x/week deploy
ROI ESTIMATE

Dev Team ROI

Monthly cost reduction simulation per engineer

Current Cost

Code review (1hr/day)20 hrs/month
Documentation (2hrs/week)8 hrs/month
Test creation (3hrs/week)12 hrs/month
Code research/search (30min/day)10 hrs/month
50 hours/month on indirect tasks
¥250,000

(at ¥5,000/hour for engineers)

After ZEROCK

Code review3 hrs/month (85% reduction)
Documentation1 hr/month (87% reduction)
Test creation3 hrs/month (75% reduction)
Code research/search2 hrs/month (80% reduction)
Reduced to 9 hours/month
¥205,000

Monthly savings

ZEROCK費用

¥30,000/person/month

→

Net monthly profit/person

¥175,000

5.8x

5.8x return from the first month

Other Use Cases

More Ways to Use ZEROCK

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