Video summary
I figured out the best way to vibe code
Main summary
Key takeaways
Summary of tech concepts + product/workflow guidance (AI “vibe coding”)
1) “Levels” of AI coding → automate the workflow
- Beginner workflow: prompt → wait for agent output → review work → prompt again.
- Expert workflow: automate the whole loop so agents can run recurring tasks with minimal manual prompting.
2) Coding agent tools reviewed / recommended
The speaker claims to have tested multiple “agentic coding” tools and calls out favorites and alternatives:
- Cursor
- Supports multiple model providers (OpenAI, Anthropic, and Cursor’s own models).
- Early support for cloud agents.
- Supports concise agent interactions and “rules/agents” configuration.
- Codex
- Praised for UI/design and concise command summaries (short “what it did” after running commands).
- Claude Code
- Mentioned but less used due to quota running out quickly.
- Devin and Factory
- Mentioned as “fantastic” options with different “harnesses” (pros/cons vary).
3) Rules via agents.md / Claude.md (how to control behavior)
Tools can be instructed using documentation-like files:
agents.md- Defines workflow preferences, commit style, commit messages, “personality,” coding preferences, etc.
Claude.md- Claude-specific equivalent.
Additional notes:
- Cursor integration: rules can be managed in Preferences → rules/skills/sub agents and written into
agents.md. - Cursor can also learn preferences automatically and write them into the agents file.
- Recommendation: create an
agents.mdper project to lock in the model’s “vibe,” language style, and process.
4) Skills: reusable “slash commands” for repeated actions
The speaker emphasizes skills as the most important part after rules:
If you do something more than once → turn it into a skill.
- Uses off-the-shelf public skills and shows an example:
- Invoke via
/→ select a skill (e.g.,auto review) → run it.
- Invoke via
Skills categories described:
- Repeated prompts/actions (avoid copy-paste).
- Domain-specific rules (company style guides, issue templates, etc.).
- Tool instructions
- Skills can call executable tools (e.g., how to run tests, select test subsets, use APIs/CLIs).
- Agents can discover which skills to use at runtime (so you may not need to manually select them every time).
- Quality gates
- Define processes like “run tests locally first; require 100% pass rate; fix tests if they fail.”
Example off-the-shelf skill set:
- “Agent Skills” (a GitHub repo described as having 61,000 stars)
- Covers an opinionated dev cycle from refining ideas/PRDs through implementation, testing, QA, and deployment.
- Installation flow:
- Paste a URL into the tool to install a skill
- Sometimes requires a restart.
5) PR review automation with Greptile (sponsored)
The speaker demonstrates review-first automation using Greptile:
- Greptile is connected to new repos.
- When a PR opens, Greptile:
- Summarizes what changed.
- Provides a confidence score (0–5) for merge success.
- Shows which files changed and what edits were made.
- Produces an issue list and copy-pasteable prompts to fix problems.
- Includes a flowchart-like view of code changes.
The speaker claims Greptile is used by companies like Nvidia, Zapier, Brex, WorkOS, etc.
6) Automations: trigger-based agent runs (e.g., “PR opened”)
Cursor/Codex have first-class automation features.
Automation consists of:
- Trigger (e.g., GitHub pull request opened)
- Agent instructions/prompt
- Optional memories/tools/MCP servers
Example workflow:
- Trigger on PR open.
- Wait until Greptile comments exist (to handle timing).
- Then iterate through Greptile comments, address them, and push updated code back to the PR.
Cursor may also auto-detect required tools for the automation (e.g., GitHub “comment on pull request” tool).
7) Loops: run repeatedly until a goal is met
A loop has three parts:
- Trigger to start
- Repeated action
- Goal/stop condition
The speaker introduces a free loop library:
- signals.fordfuture.ai/loop-library (hosted on “here.now” mentioned)
Example loop patterns:
- Overnight docs sweep loop: nightly diff between previous day changes and docs → update docs → open PR.
- Sub-50ms page load loop: repeatedly test app pages/modals/sidebars; if any exceed 50ms, optimize queries/website performance; loop continues until performance goal met.
- Production error sweep loop: nightly log scanning; diagnose error; write fix; open PR—assuming strong log coverage.
8) “Best practices” flywheel: tests + docs + logging
The approach pushes for:
- 100% test coverage via automation (if not full coverage, write tests).
- Documentation always up to date via daily automated checks.
- Exhaustive logging (suggests storing logs for ~7–30 days) so agents can fix issues that appear.
9) Cloud agents vs local agents
Key comparisons:
- Cloud agents
- Isolated environments per agent → better parallelism; less file-conflict risk.
- Runs many agents without choking local CPU/RAM.
- Accessible from anywhere (mobile/app).
- Unique feature example: Cursor can generate video/screenshots of changes an agent made.
- Local agents
- Faster latency (no environment spin-up delay).
- More direct control/visibility into files.
- Often get the newest features earlier than cloud.
Recommendation: lean toward moving workflow to cloud due to parallel-agent benefits.
10) Work trees: prevent multi-agent file conflicts
- A work tree = separate working folder/copy of the repo for an agent.
- Guidance:
- Prefer one work tree per agent thread to avoid agents writing to the same files and causing chaos.
- Merge later; conflicts resolved at merge time.
Cursor/Codex support spawning via “new work tree.”
11) Multimodal coding (multi-model workflow via skills)
Motivation:
- Speed and cost: not every step needs the most frontier model.
- Using multiple models can reduce token spend and improve throughput.
Example multi-model pipeline (as a skill):
- Plan the feature with one model after examining the codebase.
- Implement with a model better at coding execution.
- Review the output with another model for an alternative perspective.
12) Unsolved pain point: merging + deploying with many parallel agents
Major “unsolved problem” highlighted:
- When multiple agents merge around the same time, they trigger CI/deploy repeatedly.
- Agents may need to rebase/re-run tests due to new commits.
- Locking/coordination problems cause major delays and repeated work.
Partial mitigation mentioned:
- Batch commits / let one agent combine changes, then deploy once.
Speaker notes:
- Cursor is reportedly building a Git alternative for agent scale deployment, implying the issue persists.
Main speakers/sources
- Primary speaker: “I” narrator (the video host/author; not explicitly named in the subtitles).
- Sources/tools mentioned: Cursor, Codex, Claude Code, Devin, Factory, Greptile (sponsor), GitHub, “Agent Skills” GitHub repo, Greptile customer list (e.g., Nvidia, Zapier, Brex, WorkOS).
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