marfrit f26cbd9a3a phase2 amend: __ separator (Bedrock-safe) + post_sse error diagnostics
Phase 7 verify finding from TC #26 against :model cloud:
  HTTP 400 from openrouter→Amazon Bedrock:
  "tools.0.custom.name: String should match pattern
   '^[a-zA-Z0-9_-]{1,128}$'"

Anthropic via Bedrock validates tool names against that regex and
rejects dots. PHASE2 originally chose "." as the namespace separator
("boltzmann.list_dir"); OpenAI tolerated it, Bedrock does not.

Separator switched to "__" (two underscores) everywhere — internal
API matches on-wire shape, no transformation layer:

  - repl.lua:
    - tools_schema builds "alias__name"
    - dispatch_tool_call splits via "^(.-)__(.+)$" (non-greedy → leftmost __)
    - :mcp tool parser uses same split
    - :mcp tools formatter prints "alias__name"
    - HELP block shows <alias__name>
  - safety.lua confirm_tool_call: alias.* glob → alias__* glob
  - config.lua example block: keys rewritten
  - docs/PHASE2.md: amendment header added; §1, §2 row, §3 config.lua
    row, §5 wire-shape JSON examples, §6 auto_approve schema, §7
    meta-cmd table, §12 plan all updated. Original "." references
    preserved in commit history.

Constraint: aliases must not themselves contain "__" so the parse
stays unambiguous. Tool names from MCP servers may have underscores
freely.

Second fix bundled — uninformative broker error:
  Previously "broker error: transport: HTTP response code said error"
  Now      "broker error: transport: HTTP 400: {full body snippet}"

ffi/curl.lua M.post_sse changes:
  - FAILONERROR no longer set (was hiding the response body).
  - raw_body accumulator added alongside the SSE buffer; captures
    every byte regardless of SSE shape.
  - After perform, check status_code via curl_easy_getinfo. On >=400,
    return (nil, "HTTP <code>: <body[:400]>"). 2xx unchanged.
  - End-of-stream SSE flush only runs on 2xx (no false event on
    error bodies that aren't SSE-shaped).
  - Phase 1 callers reading just first return slot stay correct.

End-to-end verified:
  - :model cloud + tools=[boltzmann__read_file ...] +
    "Use boltzmann__read_file with path=/etc/hostname" →
    Claude emits tool_call with name="boltzmann__read_file",
    args='{"path": "/etc/hostname"}'. ok=true, transport clean.
  - Force-bad tool name "bad.name.with.dots" → err string carries
    the full bedrock 400 with the regex-pattern message visible.

TC #26 (sub-loop end-to-end) is now testable against cloud — the
error that blocked it is resolved.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-12 20:04:57 +00:00

aish

aish — AI-augmented conversational shell.

A single REPL that interleaves shell command execution and language-model conversation, backed by a llama.cpp HTTP broker. Implementation is LuaJIT 2.x with FFI bindings to libcurl, GNU readline, and libc — no C extensions, no build step, one source tree.

Why

Three flows that currently live in three windows fold into one:

  1. "Run this command and show me the output" — fast feedback loop, no copy-paste between terminal and chat.
  2. "Explain or write code based on the output we just looked at" — exec output is automatically injected into the model's context.
  3. "Plan and execute a multi-step task with confirmation gates" — landing in Phase 3 as Chuck Norris autonomous mode.

aish is not a wrapper around bash. It's a first-class interactive environment where the shell is one of several execution channels.

Status

Component State
Repository skeleton in this commit
Phase 0 manifest docs/PHASE0.md — locked
Phase 0 implementation 🔜 next session
Phase 1+ 📋 enumerated in PHASE0.md §11

Every module file currently raises not implemented (Phase 0 pending) when called. luajit main.lua fails loudly at the first un-implemented function, never silently.

Quick orientation

Read this If you want to know
docs/PHASE0.md §12 What aish is and what Phase 0 ships
docs/PHASE0.md §3 Technology decisions (LuaJIT, FFI, readline, libcurl, llama.cpp)
docs/PHASE0.md §4 Directory layout — these file names are stable across all phases
docs/PHASE0.md §5 How input is dispatched (meta / shell / AI)
docs/PHASE0.md §6 Broker contract: /v1/chat/completions, CMD: extraction
docs/PHASE0.md §10 Config schema and resolution order
docs/PHASE0.md §11 Phase sequence (what lands when)
docs/PHASE0.md §13 Open questions, tracked per phase
CLAUDE.md Project conventions for AI-assisted contributors

Directory layout

aish/
├── main.lua              # entry point
├── repl.lua              # readline loop, dispatch, prompt
├── broker.lua            # llama.cpp HTTP client
├── router.lua            # input classifier (meta/shell/AI)
├── executor.lua          # command exec + CMD: extraction
├── context.lua           # in-memory turn history
├── history.lua           # disk persistence (Phase 1+)
├── safety.lua            # destructive-op gate (Phase 3+)
├── renderer.lua          # output formatting
├── config.lua            # default model registry + preferences
├── ffi/
│   ├── curl.lua          # libcurl easy interface
│   ├── readline.lua      # GNU readline
│   ├── pty.lua           # forkpty (Phase 1+)
│   └── libc.lua          # chdir, errno, strerror
└── docs/
    └── PHASE0.md         # locked substrate

Build / runtime dependencies

System packages (Debian / ALARM / Arch names):

  • luajit (>= 2.0)
  • libcurl4 / libcurl-openssl-3 runtime
  • libreadline8 runtime
  • libc6 runtime (always present)

No compilation, no luarocks, no make. Just luajit main.lua.

Running

Once Phase 0 ships:

luajit main.lua                          # uses ~/.config/aish/config.lua
luajit main.lua --config ./config.lua    # explicit config path
AISH_CONFIG=/path/to/config.lua luajit main.lua

Config resolution order is documented in docs/PHASE0.md §10.

Configuration

config.lua is a Lua file returning a single table. The committed config.lua in this repo is both the canonical example and the development-fallback config (lowest precedence). Copy it to ~/.config/aish/config.lua and edit endpoints to your local llama.cpp servers, or point AISH_CONFIG at your own.

The default endpoints assume mfritsche's home network:

  • fastdirac.fritz.box:8081 (Qwen2.5-Coder-7B q4 8k ctx)
  • deepdirac.fritz.box:8080 (Qwen2.5-Coder-7B q4 32k ctx)
  • cloudhossenfelder.fritz.box:8082 (forwards to OpenRouter)

Replace these with your own llama.cpp endpoints if you're not on that LAN.

License

Not yet selected. Default-private until decided.

Project conventions

See CLAUDE.md for contribution conventions, commit style, and the phase-loop discipline this project follows.

S
Description
AI-augmented conversational shell — LuaJIT REPL with llama.cpp broker, shell executor, and routed AI inference.
Readme MIT 2.2 MiB
Languages
Lua 99.8%
Shell 0.2%