Register an existing directory as an mdflow project. This creates only .mdflow/project.json and is idempotent when the descriptor already exists.

Read a compact project map with architecture coverage, ordered Plans, Chain paths, unplanned Blocks, checkpoint-free Blocks, and missing required checkpoints without loading entity bodies.

Read the compact project-scoped Decision index. Bodies, rationale, alternatives, and consequences are omitted; use decision_open or entity_open(type=decision) for one record.

Open one project-scoped Decision. Returns its rationale, alternatives, consequences, scope, supersession, and compact History; never projects it onto Canvas.

Extract an end-to-end code stream along an architectural Chain. Returns only targeted AST symbol slices and interfaces for each node, saving ~90% tokens compared to full file reads.

Sanitize build, test, or terminal command outputs. Strips ANSI noise, collapses routine compiler stdout, and isolates actionable failure stack traces to protect context window from token flooding.

Atomically mutate a specific AST symbol's implementation bound to an architecture Block. Replaces only the targeted symbol body, runs automated verification with terminal log sanitization, and automatically rolls back if tests fail.

Generate one Foundation Plan from every non-deprecated unimplemented Block. Because this is an explicit implementation/verification Plan, the operation creates missing atomic Block checkpoints, direct Block PlanChanges, dependency-ordered parallel steps, Chain integration gates, and a final Plan acceptance gate in one transaction; plain architecture-only create_block does not.

Get a budgeted Markdown context pack for the current development task. Use at task start and expand only selected refs.

Read one Plan as a compact hierarchical development document: overview, ordered ChainScopes, inline Block/Link/Chain changes, checkpoint gates, and exact source refs. This is the primary read before implementing a Plan.

Read only graph/checkpoint mutations after a known change sequence. Use this for live synchronization and compact read-back instead of reloading the project.

Create a new reverse ChangeSet for a safe, fully reversible update-only ChangeSet. Original History is preserved; stale or unsupported changes are rejected instead of partially reverted.

Open one Block, Chain, Link, Plan, or project-scoped Decision with only relevant details and recent History. Decision bodies are never Canvas nodes.

List checkpoints by status, target, Plan or ChainScope, including standalone checkpoints that are not referenced by any Plan. Use this for a compact verification inbox instead of opening every entity.

Search graph entities and source paths without loading the entire project.

Atomically create or patch Blocks, project-scoped Decisions, global Links, Chain paths, independent Plans, atomic Checkpoints, Background scopes, Decision scopes, and source refs. Decisions are not Canvas Blocks and never enter Block/Chain/Plan coverage. A plain create_block records architecture only; use create_checkpoint in the same ChangeSet when a requirement, Plan, Chain gate, or explicit verification request makes the check necessary. Link kinds are flows_to, calls, reads, writes, depends_on, implements, validates, constrains, and supersedes. Keep each call small and provide expectedRevision for updates.

Apply a compact mdflow/1 Markdown-like patch. The server expands it into the same atomic ChangeSet used by graph_mutate, preserves omitted fields, and can create an atomic Block checkpoint with checkpoint=auto.

Create or update a checkpoint with evidence. Passed checkpoints are the only basis for healthy completion states.

Validate global graph references, Chain paths, Plan targets, Background scopes, contracts, and checkpoint-backed completion.