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Use when working with Canton Network participants, DAML smart contracts, Splice applications, or debugging LF version and package ID issues.
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Based on SOC occupation classification
Use when creating, reviewing, or updating a BRIEF.md (the quality law for a surface), defining what "good"/shippable means, or setting up a verified autonomous loop.
Use when checking deployment health, investigating errors, reading logs, or working with Tiltfiles. Queries Tilt resource status, logs, and manages dev environments.
Use when starting tilt, debugging Tiltfile errors, or bootstrapping a dev environment. Starts Tilt in zmx, monitors bootstrap to healthy state, fixes Tiltfile bugs without hard-coding or fallbacks.
Use when creating commits, managing branches, opening PRs, or rewriting history. Not for non-git implementation tasks or repo-specific release policy decisions.
Use when syncing a feature branch onto the latest origin base branch via git rebase.
Fetch latest from origin, prune remote-tracking refs, delete stale local branches and worktrees, and fast-forward important branches. Use when tidying up a worktree-based repo layout.
| name | canton-network-repos |
| description | Use when working with Canton Network participants, DAML smart contracts, Splice applications, or debugging LF version and package ID issues. |
Splice (e.g., 0.5.4) github.com/digital-asset/decentralized-canton-sync
โโ depends on
Canton (e.g., 3.4.9) github.com/digital-asset/canton
โโ depends on
DAML SDK (e.g., 3.4.9) github.com/digital-asset/daml
| Splice | Canton | DAML SDK | Protocol | LF Default | LF Available |
|---|---|---|---|---|---|
| 0.5.4 | 3.4.9 | 3.4.9 | PV34 | 2.1* | 2.2 (verified) |
| 0.5.3 | 3.4.8 | 3.4.8 | PV34 | 2.1* | 2.2 |
| 0.4.x | 3.3.x | 3.3.x | PV33 | 2.1 | 2.1 |
*Open-source Splice 0.5.4 ships with SDK snapshot 3.3.0-snapshot.20250502 (pre-dates LF 2.2). LF 2.2 was added to the SDK on 2025-10-03. Updating to SDK 3.4.9 enables LF 2.2 builds.
| Purpose | Repo | File |
|---|---|---|
| LF version definitions | daml | sdk/daml-lf/language/.../LanguageVersion.scala |
| damlc target validation | daml | sdk/compiler/damlc/lib/DA/Cli/Options.hs |
| Canton version | canton | VERSION |
| Built-in DARs | canton | community/common/src/main/daml/ |
| Splice LF config | splice | project/CantonDependencies.scala |
| Package targets | splice | daml/*/daml.yaml |
| Docker builds | splice | cluster/images/*/Dockerfile |
Splice LF config (project/CantonDependencies.scala):
val daml_language_versions = Seq("2.1") // โ LF target; change to "2.2" for upgrade
val daml_compiler_version = sys.env("DAML_COMPILER_VERSION")
Package IDs are cryptographic hashes of: source content + LF version (--target) + SDK/stdlib version + dependency package IDs.
Changing LF version = different package IDs = incompatible packages. Canton validates that upgraded packages use equal or newer LF version; mixing LF versions on the same ledger causes validation failures.
| Feature | Enterprise | Community |
|---|---|---|
| Transaction processing | Parallel | Sequential |
| Database | PostgreSQL, Oracle | PostgreSQL only |
| HA Domain | Supported | Embedded only |
| Pruning | Full | Limited |
# Community Canton participant
cd canton && sbt "community/app/assembly"
# Output: community/app/target/scala-2.13/canton-community.jar
# Splice applications (requires DAML_COMPILER_VERSION env var)
cd decentralized-canton-sync && sbt compile
project/CantonDependencies.scala: val daml_language_versions = Seq("2.2")nix/daml-compiler-sources.json: { "version": "3.4.9" }daml/*/daml.yaml: set sdk-version: 3.4.9 and --target=2.2-Wno-ledger-time-is-alpha from all daml.yaml files (not in SDK 3.4.9)daml build -p daml/splice-util && daml build -p daml/splice-amuletCommunity-built DARs have identical package IDs to enterprise at the same LF version (verified 2025-12-24).
"Unknown Daml-LF version: 2.2": damlc binary doesn't support 2.2. Check daml damlc --help for supported targets; upgrade to SDK 3.4.9.
Package ID mismatch: different --target values between builds. Check: unzip -p package.dar META-INF/MANIFEST.MF | grep Sdk-Version
Upgrade validation failed: swapping enterprise (LF 2.2) with community (LF 2.1) packages. Use DAR injection to maintain LF 2.2 compatibility.