# Robin Saleh-Jan

> Thoughts on software, systems and agentic engineering.

## Writing

- [Compound engineering for the implementation phase](https://robinsalehjan.com/blog/compound-engineering-for-the-implementation-phase): How a thin root ~/.claude/CLAUDE.md with @import references composes CLAUDE-TOKEN-EFFICIENT.md (output discipline), code-review-graph (structural code search via MCP), and rtk (PreToolUse hook that filters command output) into an implementation loop for agentic coding. Covers @import composition, structural over textual code search, hook-based command filtering, and two gotchas: CLI over MCP and images over PDFs.
- [Compound engineering for the plan and review loop](https://robinsalehjan.com/blog/compound-engineering-for-the-plan-and-review-loop): How worktrunk (git worktree manager), superpowers (spec-to-plan methodology for Claude Code and Codex), and plannotator (plan annotation plugin) compose into a plan-and-review loop for agentic coding. Covers parallel agent branches, TDD-shaped implementation plans, and margin-annotation review workflows.
- [Practical use of the inout parameter in Swift](https://robinsalehjan.com/blog/practical-use-of-the-inout-parameter-in-swift): Swift inout parameter pattern for injecting custom HTTP headers into WKWebView navigation requests. Covers pass-by-reference semantics, the cancel-and-reload pattern in WKNavigationDelegate, and guarding against infinite navigation loops with a header-presence check.
- [URLComponents quietly decodes what you carefully encoded](https://robinsalehjan.com/blog/urlcomponents-quietly-decodes-what-you-carefully-encoded): URLComponents silently decodes percent-encoded characters like %3A and %2F when you mutate queryItems, breaking nested URLs in OAuth callbacks and deep links. Fix: use percentEncodedQueryItems to preserve existing encoding. Includes a reusable URLComponents extension.

## Full Content

For complete article text, see: https://robinsalehjan.com/llms-full.txt

## Links

- [LinkedIn](https://www.linkedin.com/in/robinsalehjan/)
- [GitHub](https://github.com/robinsalehjan)