bang — progress

a verified effect-typed language · paradigm & runtime are values
generated view · 2/8 projects · 6/10 proof checkpoints · 22 trusted-axiom claims

Projects the product map — programs that pull features into being

MVP — Surface the verified kernel
Move the PRODUCT spine from prototype → MVP: surface the already-verified kernel's capabilities end-to-end (surface syntax → elaborator → run/#guard), so the language is one you can write real programs in. The bridge's first usable span (proof → programmable language); agent-observable write→run→verify loop. Kernel work is demand-driven — only when a tracer bullet can't be done in the shell. Deep verification-surfacing (state+check properties) is post-v1.
complete
Tokenizer
DONE ✓ — pulled: strings · recursion · termination-checking. examples/tokenizer.bang runs.
complete
Parser-combinator library
THE next milestone — the acceptance test for polymorphism. Pulls: higher-order (compose, the ICTy re-rep) · generic data (Parser a). The tokenizer's generalization; retires its #50 mono limit. See docs/roadmap/project-roadmap.md.
no issues yet
Spreadsheet (reactive dataflow)
Next candidate — lights up REACTIVITY (=, the distinctive dormant feature; mechanism already proven). Same shape as incremental compilation.
1 open issue
Key-value store (STM)
Wishlist — exercises STM (the one privileged primitive); full payoff needs post-v1 concurrency.
no issues yet
Web server
Wishlist — network-effect · STM/concurrency · capability-per-connection. More effect-shaped than a game; stresses the OS/distributed northstar.
no issues yet
Graphics (2048)
Wishlist — FFI-as-effect (raylib, Q37) · effectful recursion (#48). The first interactive-graphical program.
no issues yet
OS / distributed
Northstar — hardware FFI · scheduling-as-effect · capability isolation. Effects ARE the OS abstraction.
no issues yet

Proof checkpoints the verification spine — ◊1 → ◊6

◊1
Reconciliation landed
◊2
Kernel frozen v1
◊3
CalcVM ported
◊4
LR foundation (non-▷ fragment)
◊4.5
LR ▷-subsystem
◊5
Compiler v0 (the PROOF half)
◊5.25
Close + demo
◊5.5
EMISSION — the real ◊5 gate
◊5.75
Compiled demo pack
◊6
Public release v0.2 + papers + validation

Proof health axiom census of substantive enrolled claims

22
trusted-axiom claims (⊆ trusted-3)
4
flagged substantive claims
8
open sorries (burndown)
0
pending claims (build in flight)
22 trusted-axiom4 flagged
semantic strength: 17 strong · 3 structural · 2 bounded · 3 partial · 1 conjectural
enrollment roles: 18 canonical · 8 supporting · 6 aliases · 1 placeholderaliases/placeholders excluded from claim totals

Pulse recent shipped increments