Vibe Coding
Dictionary.
Shared language for vibers who build with AI, ship fast, and rewrite the rules. Türkçe + English.
Cargo Cult Programming
Copying code patterns without understanding. Exploded in the Stack Overflow + AI era; cousin of the comprehension gap.
ACID
Atomicity, Consistency, Isolation, Durability. The transactional DB guarantee contract.
AKS
Azure Kubernetes Service. Azure's managed K8s. EKS/GKE counterpart; tight Microsoft ecosystem integration.
ALB
Application Load Balancer. AWS's L7 HTTP/HTTPS load balancer. Path/host routing, WebSocket support.
AMP
Accelerated Mobile Pages. Google's 2015 fast-mobile HTML push; died in 2024, no one mourned.
Anycast
Same IP announced in many places worldwide. Users land on the nearest node; CDN backbone.
Apache Iceberg
Open table format for lakehouses. Schema evolution, time travel, ACID; became de facto standard in 2025.
Aceternity UI
3D, fluid, premium-feel React component library. Lit up indie SaaS landing pages.
Agent SDK
A library for building your own AI agent programmatically. Anthropic Agent SDK, OpenAI Assistants, etc.
Aider
Paul Gauthier's CLI coding agent. Git-native, multi-file edit, repo-map. The OG of open-source vibe coding.
Algolia
Hosted search infrastructure. De facto for docs sites via DocSearch; sub-50ms search.
Amp
Sourcegraph's agentic CLI and VS Code extension. Codebase-aware context + team-shared threads.
ast-grep
AST-based code search and refactoring. "Find all functions matching this pattern" — syntax, not regex.
Activation
The moment a new user first experiences real value. Slack's "first 2000 messages" is the classic example.
Aha Moment
The moment the user goes "ohhh, this is why I'd use this." The heart of activation.
AI-Native
A product/company designed assuming AI exists from day one — not bolted on later. Not "Notion + AI" but "AI-first Notion."
Anchor Pricing
Putting the most expensive plan at the top to make others feel cheap. Behavioral psychology + pricing.
Annual Contract
Annual prepayment + discount. Eases cash flow; cuts churn risk.
AOV
Average Order Value. Average revenue per order. Core metric in e-commerce and hybrid SaaS.
5 Whys
Asking "why?" five times in a row to dig to the root cause. From Toyota Production System.
A/B Test
Splitting traffic across two versions and comparing metrics. Classic growth technique; applies to AI prompts too.
ADR
Architecture Decision Record. Capture the context, alternatives, and outcome of an architectural decision. Future you thanks past you.
AGENT.md
Singular form of AGENTS.md. Some projects prefer this name; same content.
Agentic Pair
Human + AI agent actively pairing on code. "Agent driver, me navigator" — Cursor Composer's natural mode.
AGENTS.md
Instruction file an AI agent auto-reads on project entry. Coding standards, common commands, architecture notes. Same intent as CLAUDE.md, different name.
Adapter
Small learnable modules slotted into a pretrained model. New adapter per task, base model frozen.
Agentic RAG
RAG embedded in an agent: the model rewrites queries, runs multiple searches, synthesizes results.
Alignment
The discipline of aligning a model's behavior with human values and intent. RLHF, Constitutional AI, DPO are its techniques.
ARC-AGI
François Chollet's abstract visual reasoning test. Marketed as the "closest to AGI" benchmark; not yet solved.
Attention
The mechanism that computes how much weight to give other tokens in the input when producing the next one. The heart of the Transformer.
Autoregressive
Predicting the next token from the prior ones. The default behavior of LLMs.
301 Redirect
Permanent redirect HTTP status code. Carries 95%+ of backlink equity; the staple of site migrations.
AARRR Funnel
Pirate Metrics: Acquisition, Activation, Retention, Referral, Revenue. Dave McClure's framework that defined growth.
Abandoned Cart
User adding to cart but not completing checkout. E-commerce's biggest leak; recovery emails are standard.
AEO
Answer Engine Optimization. Structuring content to be cited in Google AI Overview, Perplexity, You.com answers.
Affiliate Program
System where third parties promote your product for commission. PartnerStack, Rewardful for integration.
AI Overview
Google's LLM-generated summary above SERP. Erodes classic blue-link clicks; the "zero-click" era.
2FA
Two-Factor Authentication. The two-factor case of MFA; usually password + TOTP/SMS.
ABAC
Attribute-Based Access Control. "User in this dept and file at this sensitivity" style policy. More flexible than RBAC, higher complexity.
Access Token
Short-lived (usually 1h) bearer token for API access. Can be a JWT or opaque.
ACL
Access Control List. Per-resource list of user/role permissions. Linux file perms; AWS S3 bucket policies.
Adversarial Attack
Adding small but purposeful perturbations to input to fool a model. Classic for image classifiers; adapted to LLMs.
Audit Log
Records of who did what, when. Required for SOC2 compliance + incident investigation.
10x Engineer
The mythical dev claimed to deliver 10x output in the same time. Got more real in the AI era; debate continues.
AI Booster
Group focused on AI benefits, minimizing risks. The broad umbrella of e/acc.
AI Slop
The flood of low-quality AI-generated content drowning the internet — SEO blogs, fake reviews, automation channels.
AI-Pilled
From "red pill" jargon: a dev who's switched to coding with AI. No going back to the old way.
Analysis Paralysis
Freezing up because too many options to choose from. Classic trap in tech stack decisions.
Anemic Domain Model
A model that's just getters/setters, with behavior dumped into services. Martin Fowler's famous anti-pattern.
Action Step
The moment an agent fires a concrete tool call. The transition from reasoning to action.
Agent Fork
Branching from an existing trajectory to try a new path. Ideal for "what-if" exploration.
Agent Graph
LangGraph's state-machine model where nodes = agents/tools and edges = handoffs. Makes complex flows visualizable.
Agent Loop
An agent's think → call tool → observe → repeat loop until the goal is met. Most modern AI apps are this loop.
Agent Memory
System for an agent to store and recall information within or across sessions. Short, long, episodic, semantic flavors.
Agent Resume
Continuing an old session/trajectory exactly where it stopped. `codex resume`, `claude --resume`.
▸ ✦ CORE
004Agentic Coding
A development style where AI operates as an autonomous agent — reading files, running commands, seeing errors, iterating. Beyond inline autocomplete.
Agentic Engineering
Karpathy's mature successor to vibe coding. Agents handle bounded sub-tasks; the developer keeps architectural ownership and reviews critical outputs. Disciplined vibe coding.
Autonomous Coding
A mode where AI works on its own with minimal human intervention. You set the goal and constraints; the agent runs, returns. Takes guts and good evals.
Vibe Coding
Building software by chatting with AI in flow, without reading every line — relying on intuition. Coined by Andrej Karpathy in Feb 2025: "Give in to the vibes, forget the code exists." Collins Dictionary Word of the Year 2025.