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2 commits

Author SHA256 Message Date
Tyler J King
63a6c0c520 feat: gsh human mode — interactive governed shell with reedline
Phase 3 / Sprint 2 finish line.

Human mode: reedline REPL with governed prompt.
  [governed] tyler@gsh:~$

Mode detection:
  --exec "cmd"              → machine mode (unchanged)
  --ungoverned --exec "cmd" → ungoverned machine (unchanged)
  (no --exec, TTY attached) → human mode (NEW)
  (no --exec, no TTY)       → error

Command classification per-keystroke (libgsh/classifier.rs):
  Free:       ls, cat, grep, echo, cd, git, ssh, curl — zero overhead
  Governed:   binaries in corpus dir — via org-ops wrapper, CR posted
  Ungoverned: not in corpus but on PATH — warn + execute
  Denied:     corpus manifest but removed — killswitch active

Session lifecycle:
  Start:  validate AC, post SESSION_STARTED CR, print banner
  Active: classify each command, governed ops post lightweight CRs
  End:    print summary (governed/free/denied/ungoverned), post SESSION_ENDED CR

Banner: principal, corpus, session ID, expiry, risk level
Prompt coloring from risk level:
  Baseline/Standard: green [governed]
  Elevated:          yellow [elevated]
  High/Critical:     red [HIGH]

New modules:
  libgsh/classifier.rs — command classification against corpus (4 tests)
  libgsh/session.rs    — session state tracking
  gsh/human.rs         — reedline REPL, prompt, banner, summary

Machine mode: zero changes (regression tested).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 15:44:34 -04:00
Tyler J King
919d8accde refactor: extract libgsh from monolith
Phase 2 of the WSL2 jumphost build.

Workspace: gsh/ (binary) + libgsh/ (library).

libgsh modules:
  ac.rs       — AC validation (R-22 single-use, R-23 corpus match, expiry)
  cr.rs       — CR construction + broker posting + inline AC request
  corpus.rs   — Corpus directory gate (killswitch)
  config.rs   — GshConfig from environment
  registry.rs — Filesystem-based consumed AC registry

gsh/src/main.rs: CLI only (~170 lines).
  Clap args, mode detection, calls libgsh, formats output.

11 unit tests in libgsh:
  ac: valid AC, expired, corpus mismatch, replay, missing context_id
  cr: broker URL formatting
  corpus: ungoverned skip, missing dir, command name extraction
  registry: consume and check
  config: default corpus_cid

Zero behavior change. Same JSON output, same exit codes,
same flags, same env vars, same broker interaction.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 09:31:50 -04:00