8v

# 8v You and your AI coding agent — same tool, same rules. 8v is one binary that reads, writes, searches, checks, builds, tests, and formats code, using fewer input and output tokens than the agent's native tools. Today, 8v supports Claude Code. More agents next. ## Install ```sh curl -fsSL https://install.8vast.io | sh ``` Or build from source: ```sh cargo build -p o8v --release # binary at target/release/8v ``` ## Setup In any project: ```sh 8v init ``` `8v init` replaces Claude Code's native Read, Edit, Write, Grep, and Glob with 8v. An MCP server is also available: `8v mcp`. Bash stays available for git, processes, and environment. ## Commands ```sh 8v ls # list files and projects in the tree 8v read src/main.rs # symbol map (functions, types) — fast 8v read src/main.rs:40-80 # exact line range 8v read src/main.rs --full # whole file 8v search "fn parse" # regex across the codebase 8v write path:12 "..." # replace a line 8v write path --insert # insert, --delete, --append 8v write path --find a --replace b 8v check . # lint + type-check + format-check, every stack 8v fmt . # auto-format 8v build . # invoke the project's build tool 8v test . # invoke the project's test runner 8v log # what ran in this session 8v stats # what failed most often 8v upgrade # update 8v itself ``` Every command accepts `--json` for structured output. ## Stacks Rust, TypeScript, JavaScript, Python, Go, Deno, .NET, Ruby, Java, Kotlin, Swift, Terraform, Dockerfile, Helm, Kustomize, Erlang. Shell files always go through shellcheck and shfmt. ## Benchmark Each scenario gives Claude a broken codebase and asks it to fix it. Native tools vs. 8v, one variable at a time. | Scenario | Input tokens | Output tokens | |---|---|---| | fix-failing-test (Rust) | −14% | −42% | | fix-go | −21% | −52% | | fix-python | −66% | −66% | | fix-typescript | −12% | −39% | N=6 per condition. Tests pass 6/6 in every scenario, both arms. ```sh cargo test -p o8v --test demo_agent_benchmark -- --ignored --nocapture --test-threads=1 ``` ## Workspace ```sh cargo build -p o8v --release # binary cargo test --workspace # full suite 8v check . # 8v on itself ``` Crates: `o8v` (binary), `o8v-core` (commands and rendering), `o8v-fs` (safe filesystem), `o8v-process` (safe subprocess), `o8v-stacks` (stack detection and dispatch), `o8v-check` (lint/type/format orchestration), `o8v-testkit` (test infrastructure). ## License `o8v-fs` and `o8v-process` are MIT. All other crates are BSL-1.1, converting to Apache 2.0 on April 5, 2030. --- Copyright (c) 2026 Soheil Alizadeh / 8Network. All rights reserved.