alexcding

Claude Code Flash — AI skill for Claude Code

AI community

Cut Claude Code token usage: hooks, Sonnet/Opus subagents, orchestration rules and /review + /task commands that keep big reads, boilerplate and diffs off the frontier model.

How to install Claude Code Flash

This entry records only its repository, not the path inside it, so there is no exact command to give. Open alexcding/claude-code-flash and copy the folder into ~/.claude/skills/, or the file into ~/.claude/agents/.

What Claude Code Flash does

Cut Claude Code token usage: hooks, Sonnet/Opus subagents, orchestration rules and /review + /task commands that keep big reads, boilerplate and diffs off the frontier model. Self-hosted take on Spotify's shunt plugin.

Alternatives in AI

System Prompts Leaks — Extracted system prompts from ChatGPT (GPT-5.4, GPT-5.3, Codex), Claude (Opus 4.6, Sonnet 4.6, Claude Code), G 38.6k ★
Optimization — ai-research-skills AWQ, GPTQ, GGUF, Flash Attention, bitsandbytes 5.4k ★
Launch An AI Feature — Workflow recipe — take an AI/LLM feature from a probabilistic-aware PRD to a launch-ready model card by chaini 1.3k ★

README

claude-code-flash

A local, self-hosted take on the idea in Spotify's ["Portal by Spotify cut my Claude Code token usage by 90%"](https://engineering.atspotify.com/2026/9/portal-by-spotify-cut-my-claude-code-token-usage-by-90): keep the frontier model from reading huge files or churning out boilerplate, and hand that work to a cheaper model instead.

Spotify's version routes files to workers on their internal Portal platform. This one uses nothing but Claude Code itself: four hooks, three subagents (two on Sonnet, one on Opus) and a rules file. No external service, no extra auth, no source code leaving your Anthropic account.

What it does

Piece	Role
`Read` hook	Denies whole-file reads over `FLASH_MIN_LINES` (default 200) and tells Claude to delegate or read a targeted window instead.
`Bash` read hook	Denies `cat` / `less` / `more` / `bat` of large files when the output is not piped or redirected. `cat big.log \| grep ERROR`, `head` and `tail` are still allowed.
`Bash` diff hook	Denies bare `git diff`, `git show`, and `gh pr diff` in the main session. Summary forms (`--stat`, `--name-only`, `--oneline`, ...) and piped forms pass.
`bulk-reader` agent	Sonnet subagent that reads files and returns structured bullets, never file dumps.
`code-writer` agent	Sonnet subagent that writes pattern-following boilerplate and reports back a file list instead of the code.
`reviewer` agent	Opus subagent that reviews a diff and returns verified findings as a table.
`SessionStart` hook	Injects `context/rules.md` into every main session (startup, resume, `/clear`, after compaction): response contract, roster, delegation, six-part briefs, task buckets, verification and reporting rules. Works like a global `CLAUDE.md` without touching yours.
`/review` command	Hands the working tree, a PR number, a branch or paths to the `reviewer` subagent and relays its findings table and ACCEPT / REWOR