Phase 0 implementation per PHASE0.md §5, §9.
Wires the lower-half modules into a single REPL:
ffi/readline -> input + history
router -> classify(line) -> meta/shell/ai
executor -> run_shell with cd interception, frame output, capture
broker -> ask_ai, then extract+confirm CMD: lines from response
context -> turn list + eviction; status line on evict
renderer -> assistant text + exec frame + status
Prompt format `[aish:<model>]> ` per §9.
Meta commands all wired (§5.2): :quit/:q, :clear, :reset, :model <name>,
:models, :history, :exec <cmd>, :ask <text>, :help. Unknown meta names
report via renderer.status rather than crashing.
End-of-input (Ctrl-D on empty line) breaks the loop cleanly. Empty /
whitespace-only lines are skipped silently before dispatch — router
would otherwise classify them as ai with empty payload and pollute
context.
`CMD: ` extraction + confirm-and-execute is wired: when broker returns
an assistant turn, the response is scanned for §6 CMD: lines; each is
prompted via readline ("execute '...'? [y/N]") when config.shell
.confirm_cmd is true (default), else auto-executed.
On broker error, the user turn just appended is popped so the context
isn't polluted with a turn that has no assistant response.
Smoke covers :help, :models, shell exec via known_commands allowlist,
and Ctrl-D break. Live broker exchange deferred per issue #12.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Phase 0 minimal output formatting per PHASE0.md skeleton.
M.assistant(text) — line-by-line; `CMD: ` lines bold+cyan
M.exec_output(output, code) — top/bottom rules; exit code on closing
rule (red on non-zero)
M.status(line) — dim "[aish] ..." single-liner
ANSI table is local to the module (no external dep). Trailing-sentinel
pattern ((text..\"\\n\"):gmatch(\"([^\\n]*)\\n\")) preserves blank lines
in assistant output rather than squashing them, at the cost of one
extra trailing newline — acceptable for Phase 0. Real syntax-aware
formatting (tree-sitter) lands in Phase 6.
Smoke verifies escape codes are emitted (od -c shows \\033[1m\\033[36m
around CMD: line) and the visual layout looks right.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Phase 0 implementation per PHASE0.md §6.
M.chat(model_cfg, messages) -> content_string | (nil, errmsg)
Builds the OpenAI-compat JSON body:
{ model, messages, stream: false, temperature: model_cfg.temperature ?? 0.2 }
Sends Content-Type and (optionally) Authorization Bearer pulled from
model_cfg.key_env's process environment. Default timeout 60s; overridable
per-model via model_cfg.timeout_ms.
Error surfaces split:
"transport: ..." curl-side (TCP/TLS/timeout)
"decode: ..." non-JSON response body
"api: ..." OpenAI-style { error: { message } } envelope
"broker.chat: no choices[1].message.content..." shape miss
Tested against four canned mock responses (nc -lN listener feeding
HTTP/1.0 + Connection: close so EOF terminates the body): happy path,
api error envelope, raw-text non-JSON, empty choices[]. The on-wire
request body verified as well: POST path, headers, model/messages/
temperature/stream JSON.
Live test against a real llama.cpp/hossenfelder endpoint deferred per
issue #12 (broker endpoint configuration).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Phase 0 implementation per PHASE0.md §5.
Pure function. Three kinds:
"meta" — line starts with ":", payload is the rest
"shell" — line starts with "$" (override, $ stripped), OR first word
is in config.shell.known_commands, OR first word is
path-like (`./`, `../`, `/`)
"ai" — everything else (including empty / whitespace-only; the
repl loop skips empty payloads before dispatching)
Path-like detection is deliberately conservative in Phase 0: anchored
prefixes only, no quoted-path or shell-glob handling. Q4 in §13 tracks
multi-command CMD: blocks; this router doesn't see those (it only
classifies user input lines, not assistant output).
Smoke covers all branches plus a nil-config fallthrough.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Phase 0 implementation per PHASE0.md §6, §7.
M.exec(cmd) -> (output, exit_code)
M.maybe_chdir(cmd) -> nil | true | false, errmsg
M.extract_cmd_lines(text)-> { "ls -la", "echo hi", ... }
Two non-obvious bits:
1. LuaJIT 2.1's io.popen():close() follows the Lua 5.1 ABI and returns
only `true` — no child exit status. The §7 manifest sketch assumes
Lua 5.2's three-return form, which doesn't apply here. Recover the
exit code by appending `; echo __AISH_EXIT_<tag>__$?` after the
command and parsing the sentinel-prefixed integer back out. Phase 1
replaces this with waitpid via libc FFI when PTY support lands.
2. `cd` interception is a §3 invariant: must not delegate to popen
(popen forks; a child cd evaporates). maybe_chdir parses the line,
~ expands, calls libc.chdir, returns success/failure separate from
"not a cd" (nil) so the caller can distinguish.
CMD: extraction is anchored at start-of-line per the §3 "exact prefix,
single space" invariant — leading whitespace before CMD: does not match.
Smoke covers: echo capture (code=0), failed ls (code!=0), `false`
(code=1), multi-line output preserved, all maybe_chdir branches
(non-cd / bare / explicit / ~ expansion / failure), CMD extraction
including the leading-whitespace-rejection case.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Phase 0 implementation per PHASE0.md §6, §8.
Context.new(opts) constructs with the §6 default system prompt (the
`CMD: ` extraction contract is hard-coded in there per §3 — locked
substrate, do not edit). opts overrides: system_prompt, max_turns
(default 40), token_budget (default 4096; visibility only in Phase 0
per Q1, deferred to Phase 3 for accurate tokenization).
API:
ctx:append({role, content}) record a turn
ctx:to_messages() [{system,...}, ...turns] for broker.chat
ctx:enforce_budget() evict pairs (user+assistant) until
#turns <= max_turns; returns count
ctx:estimate_tokens() char/4 heuristic
ctx:reset() drop all turns (system_prompt kept)
System prompt is the §6 phrasing verbatim including the `CMD: ` clause
— stored on the context, NOT in self.turns, so it is prepended freshly
on every to_messages() call.
Smoke covers basic ops, no-evict-at-max, evict-on-overflow, bulk
eviction (14 turns -> 4), reset.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Phase 0 binding per PHASE0.md §6. M.post(url, body, headers, timeout_ms)
uses CURLOPT_{URL, POST, POSTFIELDS, HTTPHEADER, WRITEFUNCTION, NOSIGNAL,
TIMEOUT_MS, USERAGENT} on a fresh easy handle, capturing the response
into a Lua string via a closure-based WRITEFUNCTION callback.
curl_easy_setopt is variadic; LuaJIT's variadic FFI dispatch needs
ffi.new() per argument otherwise. Pre-cast to three concrete signatures
(long / void* / const char*) bypasses that — cleaner and matches the
lua-curl idiom.
Robust loader: tries `curl`, `curl.so.4`, `curl-gnutls.so.4` so a
runtime-only host (no libcurl-dev installed) just works. Same idiom
as ffi/readline.
Smoke against a local nc listener: request was correctly framed
(POST path, Content-Type + X-Test headers, Content-Length matches
JSON body length) and the canned response was captured into the
returned Lua string.
SSE streaming for Phase 1 reuses this same WRITEFUNCTION hook —
chunks arrive incrementally, the closure consumes them as they come.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Phase 0 binding per PHASE0.md §9. M.readline(prompt) returns the line
as a Lua string (the C buffer is freed via libc free immediately after
ffi.string copies it) or nil on EOF. M.add_history skips empty lines.
Loader handles the case where libreadline-dev's unversioned
`libreadline.so` symlink isn't installed — falls through to
`readline.so.8` (current Debian/Arch ALARM) and `.so.7` (older)
before giving up. This trips on noether-the-LXD: only the runtime
package is present.
Smoke (stdin from heredoc, two lines + EOF):
p1> hello world -> "hello world"
p2> second line -> "second line"
p3> -> nil (EOF)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Smallest Phase 0 module per CLAUDE.md §4 implementation order.
M.chdir(path) returns (true) or (false, errmsg) — errmsg via
strerror(__errno_location()[0]). Glibc errno is thread-local
behind __errno_location() rather than a plain global, hence the
indirect access.
Verified against PHASE0.md §7 expectation: a libc.chdir() persists
across subsequent io.popen() calls (popen's child inherits the
parent's wd), which is the property executor.lua relies on for `cd`
interception. Smoke:
libc.chdir("/tmp"); io.popen("pwd"):read("*l") --> /tmp
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Captures the JSON-library decision noted as open in CLAUDE.md §6.
dkjson is pure Lua (preserves §3's "no compiled extensions" invariant),
single file, redistributable (MIT/X11). Sourced from Debian's `lua-dkjson`
package (/usr/share/lua/5.1/dkjson.lua, version 2.8) — Debian's curated
copy of the upstream at dkolf.de.
Vendoring (rather than relying on a system lua-dkjson install) keeps
aish self-contained per the §3 "no luarocks packages" invariant: any
host with luajit can run the tree as-is.
PHASE0.md §3 grows one row recording the choice.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Captures two carve-outs to aish's "non-PR-flow repo" default:
- Feature requests and bugs go to git.reauktion.de/marfrit/aish/issues
rather than direct-implement-in-band. Tag `architecture` for cross-
phase concerns. Aligns with the fleet-wide bug-filing convention from
the `his` cheatsheet; this row extends it to features for aish.
- Review-required iteration opens a PR (authored as claude-<host>,
marfrit reviews, self-approval forbidden). PR #1 was the precedent.
Both are opt-in; direct-to-main remains the default for autonomous
work that doesn't need a feedback loop.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Captures three findings from the review of 013c625 ("phase0 amendment:
insert MCP phase 2"). Opening as a PR rather than direct-to-main: the
non-PR-flow convention works fine for autonomous work, but feedback-
required iteration needs a readable medium that isn't the Claude Code
transcript.
§11 phase 2 row: spell out two scope items the original row left implicit —
the system-prompt rewrite to declare the tools schema (Phase 0's `CMD:`
contract is hard-coded into the prompt) and `safety.lua` extension to
gate tool calls (per Q8).
§13 Q6: explicit note that choosing "retire `CMD:`" requires a §3
invariant amendment in the same commit — keeps the substrate-vs-phase
boundary honest. Adds (§3 if retiring) to the impact column.
§13 Q9 (new): MCP system-prompt augmentation locus — static block in
broker.lua / per-request assembly from connected servers / hybrid.
Real architectural call with token-cost tradeoff per option.
§13 Q10 (new): tool-call streaming vs the Phase 1 SSE substrate —
phase-ordering question. Either Phase 2 lands on the blocking Phase 0
broker and refits when SSE arrives, or Phase 1 SSE moves before MCP
so tool-call deltas stream from day one.
MCP/tool-calling lands as a distinct phase, before Norris mode so the
autonomous planner has tools as substrate. lmcp speaks MCP standard
JSON-RPC 2.0 over HTTP/SSE — fits the existing libcurl FFI plan; tool
calls ride the OpenAI-compatible `tools` field on /v1/chat/completions,
so the §6 broker contract is unchanged at the transport level.
§8: tokenization concern bumped Phase 2 → Phase 3 (still tracks Norris).
§11: Norris→3, memory→4, routing→5, tree-sitter→6.
§13: Q1/Q2/Q3/Q5 phase numbers tracked the renumber; added Q6 (CMD: vs
tools coexistence), Q7 (server discovery), Q8 (tool-call auth gate).
No §3 invariant broken. No code touched — Phase 0 implementation per
the locked manifest is still the next move.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
README is now self-contained for a human reader landing on the repo cold:
project value-prop, status, quick-orientation reading order, directory
layout, build/runtime deps, run + config invocation, and a pointer to
CLAUDE.md for contribution norms.
CLAUDE.md is rewritten as the substrate a fresh Claude session needs to
pick up Phase 0→1 implementation without prior conversation context:
- Reading order (PHASE0.md → README → config.lua)
- Phase-loop discipline (8+1 with loopbacks)
- Eight invariants from PHASE0.md called out as non-negotiable without
manifest amendment
- Bottom-up implementation order for Phase 0 (libc → readline → curl →
context → executor → router → broker → renderer → repl → main)
- Testing approach without a test framework
- Open question on JSON library (dkjson recommended; needs §3 amendment)
- Ambiguity handling pattern (ask vs log-in-§13 vs stop-and-ask)
- Commit style + Co-Authored-By trailer template
- Model-class caveat: small Q4 coder models have output variance, validate
before exec, confirm_cmd defaults exist for this reason
- Push credential note for sessions without ssh-keys-on-Gitea
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- README, .gitignore, CLAUDE.md (project conventions)
- docs/PHASE0.md — full Phase 0 manifest (locked substrate)
- 10 root .lua modules + 4 ffi/ bindings, all stubs raising NotImplemented
with module-scoped responsibilities matching the manifest
- config.lua wired to current dirac/hossenfelder endpoints (qwen-coder-7b
snappy/32k + cloud via OpenRouter through hossenfelder)
File names match docs/PHASE0.md §4 exactly. Module bodies fill in across
later phases; the tree shape is locked.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
marfrit
claude-noether