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Article · Saturday, June 13, 2026

Agentic Coding

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By Marius BongartsTech38 editions
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Agentic Coding
Saturday, June 13, 2026
AI Agents - Agentic Coding

152-tip index ships, 515 system prompts extracted, Agent Teams hit production

1 min read

Best practices index

Your scattered Claude Code tips just got a searchable home.

A new curated index compiles 152 best practices with filtering by topic—covering plan mode, context hygiene, subagent patterns, and the 40% rule you've been tracking [Source: AwesomeClaude]. The guidance confirms keeping CLAUDE.md under 200 lines, splitting overflow into .claude/rules/, and using double-Esc rewind instead of accumulating failed attempts. Subagents should return conclusions only—never raw file reads.

Bookmark this before your next refactor sprint.

System prompts revealed

Claude Code v2.1.177 just exposed its full playbook.

An updated extraction repo now contains 515 system prompts—up from the 350 covered in last week's issue—including dream consolidation for memory pruning, five-angle code review with effort levels, and coordinator-mode orchestration instructions [Source: GitHub]. You'll find subagent tool permissions, memory merging passes, and the exact prompts behind slash commands like /code-review. This is how Anthropic structures context flow internally.

Mirror these patterns in your own CLAUDE.md.

Agent Teams workflow

Multi-agent coordination just moved from experiment to production pattern.

Agent Teams now give each agent its own context window with task dependency tracking and direct inter-agent messaging—built for complex refactoring where a single session would choke [Source: Morph]. The hybrid workflow emerging among solo founders: prototype with Codex for speed, then review and refactor with Claude Code for consistency. Use /goal commands for persistent multi-day work with completion conditions, and /ultrareview for parallel code review across agents.

The cost tradeoff is real—Claude burns 4x the tokens—but determinism pays off.

Ultimate guide drops

Someone finally mapped Claude Code from beginner to power user.

A new GitHub guide ships 181 annotated templates, 23 custom agent personas including a code-reviewer agent, and 48 Mermaid diagrams covering the 4-layer context model [Source: GitHub]. You get decision frameworks for when to reach for agents versus skills versus commands, plus real metrics—Fountain sees 50% faster runs, CRED hits 2x speed. An MCP server lets you query the guide directly from Claude Code sessions.

The 271 quiz questions alone are worth the clone.

Sources
Claude Code Best Practices — 80+ Expert Tips, Workflows ...
Claude Code Best Practices — 80+ Expert Tips, Workflows ...
17 hours ago ... ... cross-model setups — CLAUDE.md, context management, subagents, skills, hooks, plan mode and more, from Boris Cherny, Thariq, Dex and the Claude Code community.
awesomeclaude.ai
AI Summary

The website provides a curated collection of 152 Claude Code best practices focused on agentic coding workflows and optimization. Key recommendations include starting with plan mode to write phase-wise, testable plans before execution, keeping CLAUDE.md instructions under 200 lines and splitting larger instructions into .claude/rules/ for better organization, and aggressively using /compact or /clear commands to manage context before it drifts past 40%. For memory and context management, the practices emphasize using subagents to handle separate concerns and return conclusions rather than multiple file reads, and using the rewind function (double-Esc) to backtrack from failed attempts instead of accumulating context pollution.

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FlorianBruniaux/claude-code-ultimate-guide - GitHub
FlorianBruniaux/claude-code-ultimate-guide - GitHub
24 hours ago ... Architecture — Internal mechanics (context flow, tool orchestration, memory management); Trade-offs — Decision frameworks for agents vs skills vs commands ...
github.com
AI Summary

This GitHub repository is a comprehensive educational guide for advanced Claude Code workflows, memory management, and agentic development patterns—directly aligned with your interests. The guide covers architecture and mental models for context flow and memory hierarchy through 48 Mermaid diagrams, including a dedicated memory management section showing the 4-layer context model and token reduction pipeline. For agentic coding workflow optimization, it details multi-agent topologies (3 types including horizontal scaling), agent teams coordination for parallel debugging on large codebases (with real metrics: Fountain 50% faster, CRED 2x speed), and decision frameworks across 7 config layers for when to use agents vs skills vs commands. On AI pair programming debugging strategies, the guide provides production methodologies (TDD, SDD, BDD), 23 custom AI personas/agents including a code-reviewer agent, debugging workflows, and 37 security hooks for production hardening. The repository includes 181 annotated templates with explanations of why patterns work, 271 quiz questions across advanced topics, and a threat intelligence database (28 CVEs, 655 malicious skills) for security-first development. An MCP server is available for querying the guide directly from Claude Code sessions, plus 57 reference cards covering daily workflows and advanced patterns.

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Piebald-AI/claude-code-system-prompts - GitHub
Piebald-AI/claude-code-system-prompts - GitHub
16 hours ago ... ... management, and skills API for building specialized agents. Data: Managed ... System Prompt: Insights interaction style (119 tks) - Analyzes Claude Code usage ...
github.com
AI Summary

Claude Code v2.1.177 includes 515 system prompts (expanded from 350), with comprehensive documentation for agentic AI workflows. The repository provides extracted prompts covering sub-agents like Explore and Plan mode, creation assistants for custom agents and CLAUDE.md files, slash commands like /code-review with multiple effort levels, and utilities for conversation summarization and memory consolidation. For memory management, the system offers dream consolidation and pruning passes that merge recent signals into persistent memory while collapsing duplicates. Agentic coding optimization is supported through coordinator-mode orchestration, worker agent instructions, and multi-agent session management with subagent tool permissions. For pair programming debugging, the /code-review command provides five finder angles (removed-behavior auditor, cross-file tracer, language-pitfall specialist, wrapper correctness, efficiency dimension) with configurable effort levels, verification phases, and optional GitHub PR integration.

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Codex vs Claude Code: Subagents, Benchmarks & the Real ... - Morph
Codex vs Claude Code: Subagents, Benchmarks & the Real ... - Morph
23 hours ago ... Claude Opus 4.7. Raw context window, 200K tokens, 1M tokens. Memory management, Diff-based forgetting + Memories MCP, Automatic compaction + auto-memory. Large ...
morphllm.com
AI Summary

Claude Code's Agent Teams enable coordinated multi-agent workflows with dedicated context windows per agent, task dependency tracking, and direct inter-agent messaging, making them well-suited for complex refactoring and orchestrated projects. The latest Opus 4.7 model achieved 64.3% on SWE-bench Pro (up from 55.4%) and now ships with a 1M token context window compared to Codex's 200K, supporting longer sessions and larger codebases. For memory management, Claude Code provides automatic compaction and auto-memory that saves project context across sessions, while the new effort levels including "xhigh" let you tune cost versus thoroughness per task. The agent view dashboard (v2.1.139) unifies all session management, and /goal commands enable persistent multi-day work with completion conditions. However, token usage is notably higher—Claude uses approximately 3-4x more tokens than Codex on identical tasks, though this correlates with more thorough and deterministic outputs. For debugging strategies, Claude Code's recovery model allows you to guide agents back on track through conversation when issues occur, and /ultrareview enables parallel multi-agent code review. The hybrid workflow—prototyping with Codex for speed, then reviewing and refactoring with Claude Code for consistency—represents the emerging best practice for solo founders maximizing both tools' strengths.

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