Reference snapshot · source revision 7a2e36f2b250934a095e542ae20e62dcfb0d5f70

kit specifications

The authoritative wire-format, on-disk, and subsystem specifications. Each spec carries its own status (stable / normative / draft) in its front matter.

FORMAL.md maps spec clauses to the formal models and proofs that check them, with each result's bounds.

• SPEC-ATTESTATIONS — native attestations: in-toto v1 statements in DSSE envelopes.
• SPEC-CONCURRENCY — the total kit lock order across worktree, ref-history, and CAS locks.
• SPEC-CONFIG-SECURITY — user-vs-repo config trust boundary and key classification rules.
• SPEC-CONVENTIONS — shared vocabulary (RFC 2119 keywords, status vocabulary, encoding notation) for the SPEC-*.md corpus.
• SPEC-DELTA — delta encoding for packfile objects.
• SPEC-DISCLOSURE — partial-disclosure bundle (path/chunk/byte-range proofs) and the closure profile (full disclosure against a commit id).
• SPEC-EXTERNAL-SIGNER — subprocess protocol for out-of-process signers (HSM, TPM, WebAuthn, …).
• SPEC-FASTCDC — deterministic content-defined chunking for chunked blobs.
• SPEC-GC — garbage collection, object pruning, and recovery.
• SPEC-GIT-BRIDGE — kit→git export bridge (fork mode) and its verifiers.
• SPEC-GIT-IMPORT — git→kit import bridge (one-way fork) and its verifiers.
• SPEC-HISTORY-ORDER — bounded timestamp/discovery all-parent traversal order and reducer snapshot format.
• SPEC-HISTORY-PROOF — MMB-based history proofs for light-client verification.
• SPEC-HTTP-OBJECTS — HTTP object serving, published-view access, and disclosure proofs.
• SPEC-INDEX — repo-local staging-area index (advisory, not exchanged).
• SPEC-KEYSTORE — key vault interface, backends, and kit key CLI surface.
• SPEC-MERKLE-OBJECTS — merkelized ChunkedBlob and Tree object hashing.
• SPEC-OBJECTS — on-disk object model and canonical serialization over BLAKE3 IDs.
• SPEC-PACKFILE — packfile wire format for object exchange.
• SPEC-REFS — ref names, storage, and CAS update variants.
• SPEC-RELEASE-THRESHOLD — BLS threshold signatures for release-party attestation.
• SPEC-RPC — shared stdio protobuf framing for subprocess protocols.
• SPEC-SIGNING — commit / remix / tag signing hashes and verification.
• SPEC-SPARSE-CHECKOUT — verifiable server-side sparse checkout over HTTP/S3.
• SPEC-TRANSPORT — seven-verb transport wire protocol (file, SSH, HTTP via SPEC-TRANSPORT-CONNECT, S3, memory).
• SPEC-TRANSPORT-CONNECT — draft kit.transport.v1 Connect service, the canonical remote protocol for kit+https remotes.
• SPEC-WORKTREE — linked working trees: common-dir/per-tree state split, discovery, and cross-worktree locking.
• SPEC-WRITE-GRANTS — draft owner-signed grants that let Ed25519 keys write to, or read from, a namespace's repositories.