Claude Code Guide 2026: 25 Features with Examples + Demo

Claude Code started as a terminal coding assistant. It now runs as a layered agentic system. Underneath, Claude Code separates memory, hooks, skills, subagents, plugins, and MCP into distinct layers. Each layer changes what the model can see or do.

This article covers 25 features and strategies for scaling Claude Code. It is written for AI engineers, software engineers, and data scientists. Every code example follows a documented format and runs as written. Each item is labeled by status, so you know what ships with Claude Code and what does not.

What is Claude Code

Claude Code is Anthropic’s agentic coding tool. It works in the terminal, the desktop app, and your IDE. It can read files, run commands, edit code, and call external tools. Under the hood, it runs an agentic loop. That loop chooses tools, accumulates context, and manages long sessions through compaction.

Safety boundaries come from permission modes, checkpoints, sandboxing, and managed settings. The same loop is exposed programmatically through the Agent SDK. Developers extend the tool with a small set of primitives. Those primitives are CLAUDE.md, skills, subagents, slash commands, hooks, and MCP servers. Plugins bundle these primitives into one installable unit.

The 25 Features and Strategies

Each feature/strategy is labeled. ‘Official’ means documented Anthropic functionality. ‘Community technique’ means a workflow pattern, not a shipped feature. ‘Third-party tool’ means software built outside Anthropic.

1. CLAUDE.md memory file (Official). This file is the agent’s constitution for your repository. Claude reads it every session to anchor conventions and commands.
2. Skills (Official). A skill is a SKILL.md file with frontmatter under .claude/skills/<name>/. It supports /name invocation and autonomous invocation by Claude.
3. Subagents (Official). Subagents are specialized instances with their own context windows. Verbose work stays isolated, so your main conversation stays focused.
4. Slash commands (Official). These are typed shortcuts starting with /. Built-ins include /init, /compact, /context, /review, and /security-review.
5. Hooks (Official). Hooks are deterministic scripts that fire at defined lifecycle points. PreToolUse is the primary security checkpoint before any tool runs.
6. MCP servers (Official). Model Context Protocol connects Claude Code to GitHub, databases, and browsers. The server handles integration; Claude reasons about what to do.
7. Plugins (Official). A plugin is a versioned bundle of skills, subagents, commands, hooks, and MCP definitions. One /plugin command installs the whole set.
8. Checkpoints (Official). Claude Code snapshots state automatically before changes. Press Escape twice to rewind when something breaks.
9. Plan mode (Official). Plan mode explores and proposes without executing. It is ideal for scoping work before committing edits.
10. Permission modes (Official). Default mode asks before each file write and shell command. Other modes trade oversight for speed.
11. Auto Mode (Official, research preview). A separate Sonnet 4.6 classifier reviews each action first. Safe actions proceed; risky ones get blocked or escalated.
12. Context compaction (Official). /compact condenses long sessions to preserve usable context. /context reports current context usage.
13. Background tasks (Official). Long shell commands run with the run_in_background flag on the Bash tool. Claude polls output without blocking the conversation.
14. Agent SDK (Official). The SDK exposes the same loop programmatically through query(). You can send slash commands like /code-review and process results.
15. Headless CLI (Official). claude -p "query" runs a one-shot process and exits. Piped input like cat logs.txt | claude -p also works.
16. GitHub Action and scheduled jobs (Official). Claude Code runs as a one-shot process without a TTY. This enables CI integration, scheduled jobs, and pre-commit hooks.
17. Output styles and statusLine (Official). Output styles change response formatting. A custom statusLine renderer surfaces session state in the terminal.
18. Remote Control and mobile push (Official). You can drive Claude Code from mobile or web surfaces. Claude can send push notifications when tasks finish.
19. Away summary (Official). This session-level feature surfaces context when you return to a paused session. It is enabled by default and can be opted out.
20. Sandboxing (Official). The sandboxed Bash tool enforces OS-level filesystem and network isolation. Commands run without prompts inside boundaries you define.
21. Structured context folders (Community technique). Organize task-specific folders for brand guidelines, client data, or legal terminology. The right context loads for each task, improving output relevance.
22. Dynamic workflows (Community technique). Break complex tasks into smaller steps using sub-agents. Common patterns include ‘classify and act’ and ‘fan out and synthesize.’
23. Modular skill pipelines (Community technique). Chain reusable skills into end-to-end workflows. A support pipeline can combine categorization, response generation, and escalation skills.
24. External memory layers (Third-party tool). Tools such as Mem Search or Hermes extend recall across long projects. They sit outside Claude Code’s built-in memory.
25. Resilience techniques (Community technique). Practitioners reset and retry tasks when output quality degrades. This avoids context pollution and keeps results consistent.

Try the Interactive Demo

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border:1px solid #2a2a2a!important;border-radius:14px!important;
max-width:920px!important;margin:24px auto!important;overflow:hidden!important;
line-height:1.5!important;font-size:15px!important;
}
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#mtp-cc-demo .ccd-title{font-size:21px!important;font-weight:800;color:#fff!important;letter-spacing:-.01em}
#mtp-cc-demo .ccd-sub{font-size:13px!important;color:#9a9a9a!important;margin-top:5px}
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padding:9px 14px!important;border-radius:9px 9px 0 0!important;font-size:13px!important;font-weight:600;cursor:pointer;transition:all .15s}
#mtp-cc-demo .ccd-tab:hover{color:#fff!important;border-color:#3a3a3a!important}
#mtp-cc-demo .ccd-tab.on{background:#111!important;color:#76B900!important;border-color:#2f4d00!important;border-bottom-color:#111!important}
#mtp-cc-demo .ccd-body{padding:20px 22px 24px!important;min-height:340px}
#mtp-cc-demo .ccd-pane{display:none}
#mtp-cc-demo .ccd-pane.on{display:block;animation:ccdfade .25s ease}
@keyframes ccdfade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}

/* Filter chips */
#mtp-cc-demo .ccd-chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:16px}
#mtp-cc-demo .ccd-chip{border:1px solid #242424!important;background:#161616!important;color:#b5b5b5!important;
font-size:12px!important;font-weight:600;padding:6px 12px!important;border-radius:999px!important;cursor:pointer;transition:all .15s}
#mtp-cc-demo .ccd-chip:hover{border-color:#3a3a3a!important;color:#fff!important}
#mtp-cc-demo .ccd-chip.on{background:#76B900!important;color:#0a0a0a!important;border-color:#76B900!important}
#mtp-cc-demo .ccd-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
#mtp-cc-demo .ccd-card{border:1px solid #1f1f1f!important;background:#151515!important;border-radius:11px!important;padding:13px 14px!important;cursor:pointer;transition:all .15s}
#mtp-cc-demo .ccd-card:hover{border-color:#2f4d00!important;background:#181b13!important;transform:translateY(-1px)}
#mtp-cc-demo .ccd-card h4{font-size:14px!important;color:#fff!important;display:flex;align-items:center;gap:8px;font-weight:700}
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#mtp-cc-demo .t-third{background:#2a1d33!important;color:#c08bff!important}
#mtp-cc-demo .ccd-card p{font-size:12.5px!important;color:#9a9a9a!important;margin-top:7px;display:none}
#mtp-cc-demo .ccd-card.open p{display:block}
#mtp-cc-demo .ccd-chead{cursor:pointer}
#mtp-cc-demo .ccd-play{display:none;margin-top:11px;border-top:1px solid #1f1f1f!important;padding-top:11px!important}
#mtp-cc-demo .ccd-card.open .ccd-play{display:block}
#mtp-cc-demo .ccd-ctl{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:9px}
#mtp-cc-demo .ccd-runbtn{background:#76B900!important;color:#0a0a0a!important;border:none!important;font-weight:700;font-size:12px!important;padding:7px 14px!important;border-radius:7px!important;cursor:pointer}
#mtp-cc-demo .ccd-runbtn:hover{background:#8fd400!important}
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#mtp-cc-demo .ccd-fout .s{color:#7fb3ff!important}
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#mtp-cc-demo .ccd-fout .muted{color:#666!important}
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#mtp-cc-demo .ccd-pin{min-width:170px;flex:1 1 170px}
#mtp-cc-demo .ccd-toggle{display:inline-flex;align-items:center;gap:7px;background:#161616!important;border:1px solid #242424!important;color:#cfcfcf!important;font-size:12px!important;padding:6px 11px!important;border-radius:7px!important;cursor:pointer}
#mtp-cc-demo .ccd-toggle b{color:#ff6b6b!important}
#mtp-cc-demo .ccd-toggle.on b{color:#76B900!important}
#mtp-cc-demo .ccd-knob{width:9px;height:9px;border-radius:50%;background:#ff6b6b;display:inline-block}
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#mtp-cc-demo .ccd-count{font-size:12px!important;color:#777!important;margin:4px 0 14px}
#mtp-cc-demo .ccd-pickrow{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
#mtp-cc-demo .ccd-plabel{font-size:12px!important;color:#9a9a9a!important;font-weight:600}
#mtp-cc-demo select.ccd-featsel{flex:1 1 220px;min-width:200px;background:#0d0d0d!important;border:1px solid #2f4d00!important;border-radius:9px!important;color:#fff!important;-webkit-text-fill-color:#fff!important;padding:10px 12px!important;font-size:13px!important;font-weight:600;font-family:inherit!important;cursor:pointer}
#mtp-cc-demo select.ccd-featsel:focus{outline:none!important;border-color:#76B900!important}

/* Terminal */
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#mtp-cc-demo .ccd-termbar{display:flex;align-items:center;gap:7px;padding:9px 13px!important;border-bottom:1px solid #1a1a1a!important;background:#0d0d0d!important}
#mtp-cc-demo .ccd-dot{width:11px;height:11px;border-radius:50%}
#mtp-cc-demo .ccd-out{padding:14px 15px!important;height:250px;overflow-y:auto;font-family:”SF Mono”,Menlo,Consolas,monospace!important;font-size:12.5px!important;line-height:1.7}
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#mtp-cc-demo .ccd-out .s{color:#7fb3ff!important}
#mtp-cc-demo .ccd-out .d{color:#cfcfcf!important}
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#mtp-cc-demo .ccd-out .e{color:#ff6b6b!important}
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background:transparent!important;border:none!important;outline:none!important;box-shadow:none!important;
color:#ffffff!important;-webkit-text-fill-color:#ffffff!important;caret-color:#76B900!important;
font-family:”SF Mono”,Menlo,Consolas,monospace!important;font-size:13px!important;line-height:1.5!important;
opacity:1!important;pointer-events:auto!important;cursor:text!important;
-webkit-user-select:text!important;user-select:text!important;-webkit-appearance:none!important;appearance:none!important;
margin:0!important;padding:0!important;border-radius:0!important;
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#mtp-cc-demo .ccd-hint{font-size:11.5px!important;color:#777!important;margin-top:10px}
#mtp-cc-demo .ccd-hint code{color:#76B900!important;background:#141414!important;padding:1px 5px;border-radius:4px}

/* Classifier */
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#mtp-cc-demo .ccd-pill{border:1px solid #242424!important;background:#151515!important;color:#cfcfcf!important;font-family:”SF Mono”,Menlo,Consolas,monospace!important;font-size:12px!important;padding:7px 11px!important;border-radius:8px!important;cursor:pointer;transition:all .15s}
#mtp-cc-demo .ccd-pill:hover{border-color:#3a3a3a!important;color:#fff!important}
#mtp-cc-demo .ccd-verdict{border-radius:11px!important;padding:16px!important;border:1px solid #1f1f1f!important;background:#121212!important;min-height:120px}
#mtp-cc-demo .ccd-vhead{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15px!important}
#mtp-cc-demo .v-safe{color:#76B900!important}#mtp-cc-demo .v-block{color:#ff6b6b!important}#mtp-cc-demo .v-esc{color:#ffb454!important}
#mtp-cc-demo .ccd-vbody{font-size:13px!important;color:#a5a5a5!important;margin-top:9px}
#mtp-cc-demo .ccd-vmeta{font-family:”SF Mono”,Menlo,Consolas,monospace!important;font-size:11.5px!important;color:#76B900!important;background:#0d0d0d!important;border:1px solid #1a1a1a;border-radius:7px;padding:8px 10px;margin-top:10px;word-break:break-all}

/* Builder */
#mtp-cc-demo .ccd-field{margin-bottom:12px}
#mtp-cc-demo .ccd-field label{display:block;font-size:12px!important;color:#9a9a9a!important;margin-bottom:5px;font-weight:600}
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#mtp-cc-demo input,#mtp-cc-demo textarea{
color:#ffffff!important;-webkit-text-fill-color:#ffffff!important;caret-color:#76B900!important;
opacity:1!important;pointer-events:auto!important;-webkit-user-select:text!important;user-select:text!important;cursor:text!important;
}
#mtp-cc-demo .ccd-field input:focus,#mtp-cc-demo .ccd-field textarea:focus{border-color:#76B900!important;outline:none!important}
#mtp-cc-demo .ccd-two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
#mtp-cc-demo .ccd-pre{background:#0a0a0a!important;border:1px solid #1f1f1f!important;border-radius:10px!important;padding:14px!important;font-family:”SF Mono”,Menlo,Consolas,monospace!important;font-size:12px!important;color:#cfcfcf!important;white-space:pre-wrap;margin-top:8px;min-height:150px}
#mtp-cc-demo .ccd-pre .h{color:#76B900!important}
#mtp-cc-demo .ccd-copy{margin-top:10px;background:#76B900!important;color:#0a0a0a!important;border:none!important;font-weight:700;font-size:13px!important;padding:9px 16px!important;border-radius:8px!important;cursor:pointer}
#mtp-cc-demo .ccd-copy:hover{background:#8fd400!important}
#mtp-cc-demo .ccd-foot{padding:12px 22px!important;border-top:1px solid #1a1a1a!important;font-size:11px!important;color:#666!important;background:#0d0d0d!important;display:flex;justify-content:space-between;flex-wrap:wrap;gap:6px}

@media (max-width:640px){
#mtp-cc-demo .ccd-grid,#mtp-cc-demo .ccd-two{grid-template-columns:1fr!important}
#mtp-cc-demo .ccd-title{font-size:18px!important}
#mtp-cc-demo .ccd-body{padding:16px!important}
#mtp-cc-demo .ccd-tab{padding:8px 11px!important;font-size:12px!important}
#mtp-cc-demo .ccd-out{height:220px}
}

(function(){
var root=document.getElementById(‘mtp-cc-demo’);
if(!root||root.dataset.init)return; root.dataset.init=’1′;
var $=function(s){return root.querySelector(s)};
var $$=function(s){return root.querySelectorAll(s)};

/* —- data: 25 features —- */
var F=[
[1,’CLAUDE.md memory’,’official’,’The agentu2019s constitution for your repo. Read every session to anchor conventions and commands.’],
[2,’Skills’,’official’,’A SKILL.md file under .claude/skills//. Invoked by /name or autonomously by Claude.’],
[3,’Subagents’,’official’,’Specialized instances with their own context windows. Verbose work stays isolated from the main chat.’],
[4,’Slash commands’,’official’,’Typed shortcuts starting with /. Built-ins include /init, /compact, /context, /review.’],
[5,’Hooks’,’official’,’Deterministic scripts firing at defined lifecycle points. PreToolUse is the primary security checkpoint.’],
[6,’MCP servers’,’official’,’Model Context Protocol connects Claude Code to GitHub, databases, and browsers.’],
[7,’Plugins’,’official’,’Versioned bundles of skills, subagents, commands, hooks, and MCP definitions installed with /plugin.’],
[8,’Checkpoints’,’official’,’Automatic snapshots before changes. Press Escape twice to rewind when something breaks.’],
[9,’Plan mode’,’official’,’Explores and proposes without executing. Ideal for scoping work before committing edits.’],
[10,’Permission modes’,’official’,’Default mode asks before each file write and shell command. Other modes trade oversight for speed.’],
[11,’Auto Mode (research preview)’,’official’,’A Sonnet 4.6 classifier reviews each action first. Safe ones proceed; risky ones get blocked.’],
[12,’Context compaction’,’official’,’/compact condenses long sessions to preserve usable context. /context reports current usage.’],
[13,’Background tasks’,’official’,’Long shell commands run with run_in_background on the Bash tool, without blocking the conversation.’],
[14,’Agent SDK’,’official’,’Exposes the same loop programmatically via query(). Send slash commands and process results in code.’],
[15,’Headless CLI’,’official’,’claude -p “query” runs a one-shot process and exits. Piped input also works.’],
[16,’GitHub Action & jobs’,’official’,’Runs as a one-shot process without a TTY. Enables CI, scheduled jobs, and pre-commit hooks.’],
[17,’Output styles & statusLine’,’official’,’Output styles change formatting. A custom statusLine renderer surfaces session state.’],
[18,’Remote Control & push’,’official’,’Drive Claude Code from mobile or web. Claude can push notifications when tasks finish.’],
[19,’Away summary’,’official’,’Surfaces context when you return to a paused session. Enabled by default, opt-outable.’],
[20,’Sandboxing’,’official’,’The sandboxed Bash tool enforces OS-level filesystem and network isolation. Commands run within boundaries you define.’],
[21,’Structured context folders’,’technique’,’Task-specific folders for brand, client, or legal context. The right context loads per task.’],
[22,’Dynamic workflows’,’technique’,’Break tasks into steps with sub-agents. Patterns: classify-and-act and fan-out-and-synthesize.’],
[23,’Modular skill pipelines’,’technique’,’Chain reusable skills end-to-end. A support pipeline links categorization, response, and escalation.’],
[24,’External memory layers’,’third’,’Tools like Mem Search or Hermes extend recall. They sit outside built-in memory.’],
[25,’Resilience techniques’,’technique’,’Slot Machine Theory, Agent View, Ultra Code. Reset and retry when output degrades.’]
];
var labels={official:’Official’,technique:’Technique’,third:’Third-party’};
function esc(s){return (s||”).replace(/&/g,’&’).replace(//g,’>’);}
/* per-feature key-activity scripts: each step is [class, html, optionalDelayMs] */
var DEMOS={
1:{control:{type:’input’,default:’No default exports’,placeholder:’a convention’},run:function(v){return [
[‘muted’,’$ claude (new session)’],[‘s’,’u25cf Reading CLAUDE.md’],
[‘d’,’u00a0u00a0Project: my-tool u00b7 Build: npm run build u00b7 Test: npm test’],
[‘u’,’u00a0u00a0Convention loaded: ‘+esc(v||’No default exports’)],
[‘u’,’u2713 Context anchored. Claude follows these every turn.’]];}},
2:{control:{type:’select’,options:[‘/code-review (manual)’,’autonomous’],default:’/code-review (manual)’},run:function(v){return [
[‘u’,’> ‘+(v.indexOf(‘auto’)>-1?'(Claude detects a review task)’:’/code-review’)],
[‘s’,’u25cf Loading .claude/skills/code-review/SKILL.md’],
[‘d’,’u00a0u00a0Instructions + helper files loaded’],
[‘w’,’u00a0u00a0u26a0 src/auth.ts:42 unhandled rejection’],
[‘u’,’u2713 Skill complete. 1 issue, fix suggested.’]];}},
3:{run:function(){return [
[‘s’,’u25cf Spawning 3 subagents (parallel, isolated context)’],
[‘d’,’u00a0u00a0[frontend] building UI components…’],
[‘d’,’u00a0u00a0[backend]u00a0 wiring API routes…’],
[‘d’,’u00a0u00a0[tests]u00a0u00a0u00a0 generating unit tests…’],
[‘muted’,’u00a0u00a0(verbose work stays inside each subagent)’],
[‘u’,’u2713 Summaries returned. Main context stayed clean.’]];}},
4:{control:{type:’select’,options:[‘/init’,’/context’,’/compact’,’/review’,’/security-review’,’/mcp’,’/agents’,’/plugin’],default:’/init’},run:function(v){var m={
‘/init’:[[‘s’,’u25cf Analyzing repo’],[‘u’,’u2713 Wrote CLAUDE.md (build, test, conventions).’]],
‘/context’:[[‘s’,’u25cf Context usage’],[‘d’,’u00a0u00a0files 38% u00b7 chat 19% u00b7 free 27%’],[‘u’,’u2713 Run /compact to reclaim more.’]],
‘/compact’:[[‘s’,’u25cf Compacting’],[‘u’,’u2713 Recovered ~31% of the window.’]],
‘/review’:[[‘s’,’u25cf Reviewing staged changes’],[‘w’,’u00a0u00a0u26a0 2 issues, 0 blocking’],[‘u’,’u2713 Fixes suggested.’]],
‘/security-review’:[[‘s’,’u25cf Scanning diff’],[‘e’,’u00a0u00a0u2715 secret literal in config.ts’],[‘u’,’u2713 1 high, 1 medium.’]],
‘/mcp’:[[‘s’,’u25cf MCP servers’],[‘d’,’u00a0u00a0github u00b7 filesystem connected’],[‘u’,’u2713 /mcp add to connect more.’]],
‘/agents’:[[‘s’,’u25cf Subagents’],[‘d’,’u00a0u00a0Explore u00b7 Plan u00b7 general-purpose’],[‘u’,’u2713 Define your own in .claude/agents/’]],
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9:{run:function(){return [
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19:{run:function(){return [
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22:{run:function(){return [
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23:{run:function(){return [
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24:{control:{type:’input’,default:’What did we decide about auth?’,placeholder:’ask the memory store’},run:function(v){return [
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[‘d’,’u00a0u00a0Recall: “Chose JWT over sessions, 2 weeks ago”‘],[‘u’,’u2713 Continuity across long projects.’]];}},
25:{run:function(){return [
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function line(cls,txt){var d=document.createElement(‘div’);d.className=cls;d.innerHTML=txt;out.appendChild(d);out.scrollTop=out.scrollHeight;}
function boot(){
line(‘muted’,’Claude Code (simulated). Type /help to list commands.’);
line(‘muted’,’u00a0′);
}
var CMD={
‘/help’:function(){
line(‘s’,’Available slash commands (subset):’);
[‘/init u2014 generate a CLAUDE.md for this project’,
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‘## Lintn’+($(‘#b-lint’).value||”)+’n’+
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build();
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How the Extensibility Primitives Compare

Devs/AI Professionals often confuse skills, subagents, slash commands, and hooks. The table below separates them by where they live and how they run.

The rule of thumb is simple. Use a slash command for a prompt template. Use a skill when there is real domain logic or helper files. Use a subagent for isolated, parallel work. Use a hook to enforce a rule with code.

Use Cases With Examples

• Codebase onboarding: Join a new team and run an Explore subagent. It is read-only, so it maps the repo without editing files. Pair it with a CLAUDE.md that lists build, lint, and test commands.
• Automated code review: Run /review for general feedback or /security-review for vulnerabilities. On Team and Enterprise plans, multi-agent review can split the work across subagents.
• Overnight refactors: Enable Auto Mode for a clearly scoped task in an isolated environment. Combine it with background tasks and checkpoints. If output drifts, rewind with Escape twice and retry.
• Customer feedback classification: Build a dynamic ‘classify and act’ workflow. Claude reads feedback, categorizes responses, and generates insights in one pass. This suits high-volume, repetitive operations.
• Continuous integration. Use the headless CLI inside a GitHub Action. Run claude -p on each pull request to lint, test, or summarize diffs without a terminal. Scheduled jobs can run the same command nightly. Combine this with hooks to enforce team policy automatically.

Coding Examples

These snippets are illustrative and faithful to documented formats. Start with a minimal CLAUDE.md.

# Project: my-tool
## Build
npm run build
## Test
npm test
## Conventions
- TypeScript strict mode
- No default exports
- Commit format: feat/fix/chore(scope): description

A skill is a folder with a SKILL.md and frontmatter.

---
name: code-review
description: Review changed files against our team standards.
---
Review staged changes. Flag risks. Suggest concrete fixes.

A subagent restricts its tools to stay read-only and safe.

A subagent restricts its tools to stay read-only and safe.

---
name: explorer
description: Read-only codebase exploration.
tools: Read, Grep, Glob
---
Map the repository structure and summarize entry points.

A PreToolUse hook blocks dangerous Bash before it runs.

{
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Bash",
        "hooks": [
          { "type": "command", "command": "scripts/guard.sh" }
        ]
      }
    ]
  }
}

Add a maintained MCP server, then run a headless query for CI.

claude mcp add filesystem -- npx -y @modelcontextprotocol/server-filesystem ~/projects
claude -p "List the largest files under src and explain why" --output-format json

Key Takeaways

• Claude Code is a layered agentic system, not a single chat prompt.
• Six primitives drive extensibility: CLAUDE.md, skills, subagents, slash commands, hooks, and MCP.
• Auto Mode is a research-preview permission mode gated by a Sonnet 4.6 classifier.
• Not every ‘Claude Code’ tip is official; some rely on third-party tools.

The post Claude Code Guide 2026: 25 Features with Examples + Demo appeared first on MarkTechPost.