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Ci dsl dag design - #94

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cursor/ci-dsl-dag-design-8001
Feb 28, 2026
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Add design document for migrating CI YAML generation to a DSL-first DAG model.

This document outlines the design for CG-1 through CG-5 from the Blue Team backlog, focusing on migrating CI YAML generation from ~700 lines of Rust string concatenation to a DSL-first modeling approach. It details key design decisions for dsl/std/ci.dag, dsl/std/ci_render.dag, and dsl/tools/cigen.dag, along with a deletion plan for existing Rust code.


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Design for migrating CI YAML generation from Rust string concatenation
to DSL-first modeling. Covers:
- CG-1: CI model types (CiWorkflow, CiJob, CiStep, etc.) in dsl/std/ci.dag
- CG-2: Pure rendering functions in dsl/std/ci_render.dag
- CG-3: cigen tool entrypoint in dsl/tools/cigen.dag
- CG-4: Rust cigen code deletion plan (~200 lines)
- CG-5: RenderConfig/SharedStep cleanup plan (~500 lines)

Follows makegen pattern: extern discovery -> pure DSL rendering -> content_upsert.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
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cursoragent and others added 7 commits February 28, 2026 07:02
Major revision of the CI DSL DAG design. Key change: introduces
std/format_render.dag as a bridge between std/languages.dag (language
models) and shared/dag_util.dag (Document rendering engine).

The format-aware layer derives comment syntax, headers, and section
markers from ConfigFormat/Language data declarations rather than
hardcoding '#' strings. CI rendering becomes a consumer of this
layer — config_format_header(yaml_format, ...) instead of literal
'# Generated by...'.

Includes consolidation inventory: 8+ locations across pragma.dag,
bootstrap.dag, deps.dag, makegen.dag that currently hardcode comment
prefixes, all replaceable via format_render.dag.

Architecture:
  Layer 0: std/languages.dag (what is YAML? — CommentSyntax)
  Layer 1: std/format_render.dag (format-aware primitives)
  Layer 2: std/ci_render.dag (CI rendering, consumes Layer 1)
  Layer 3: tools/cigen.dag (entrypoint tool)

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
New files following the compositional modeling philosophy:

Layer 0 (std/):
  - std/format_render.dag: Format-aware rendering bridge. Derives
    comment syntax from ConfigFormat/Language models instead of
    hardcoded strings. Connects std/languages.dag to Document engine.
  - std/yaml_render.dag: YAML serialization primitives (mappings,
    sequences, indentation, comments). Follows markdown_render.dag
    pattern.

Layer 1 (extdeps/):
  - extdeps/github_actions.dag: 'What is GitHub Actions?' Tautological
    types — Workflow, Job, Step (Run|Uses), Trigger, Permission,
    Cache, RunnerImage. Well-known actions and runners as data.
  - extdeps/gitlab_ci.dag: 'What is GitLab CI?' Tautological types —
    Pipeline, Job, Variable, Need, CacheConfig.

Layer 2 (config/):
  - config/ci.dag: Our CI configuration. Static data declarations
    composing extdeps types with our repo's requirements (branches,
    runner, permissions, env, cache paths).

Layer 3 (tools/):
  - tools/cigen.dag: Rendering + entrypoint. Composes YAML primitives
    with provider schemas. Extern bridge for dynamic values (secrets,
    tool command). Renders both GitHub Actions and GitLab CI YAML via
    content_upsert.

Architecture: YAML (language) -> GitHub Actions / GitLab CI (interfaces)
-> our config (policy) -> cigen tool (rendering + execution). Each layer
is a tautology stacked on the layer below.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
Rewrites the design doc to match the implemented architecture:
- YAML as a language (std/yaml_render.dag)
- GitHub Actions as an external dependency (extdeps/github_actions.dag)
- GitLab CI as an external dependency (extdeps/gitlab_ci.dag)
- Our config as policy composition (config/ci.dag)
- Clean layer separation matching docs/modeling.md patterns

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
format_render.dag now has two parts:
  1. Format-aware primitives — comment syntax derived from language models
  2. Structured-text primitives — indent_text, kv_pair, list_item,
     text_block, list_block, kv_block. Format-agnostic building blocks.

yaml_render.dag is now a thin wrapper fixing YAML parameters:
  indent_unit='  ', kv_sep=': ', list_prefix='- '

Each yaml_* function is a one-liner delegating to format_render.
The common layer is reusable for Makefile (unit='\t', sep=' = ')
and other formats.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
- Replace cmd_cigen() in codegen_cli.rs with DSL-based execution:
  builds graph from tools/cigen.dag, executes via execute_and_display.
  Deletes ~260 lines of template generation and validation code.

- Add DiscoverCiConfigOp extern bridge in extern_impls.rs:
  returns secrets (from testgen metadata), tool_command (from
  CargoInvocation), and bootstrap_script. Static config (branches,
  runner, permissions, env) comes from config/ci.dag.

- Delete: generate_github_actions_template(), generate_gitlab_ci_template(),
  validate_github_actions_template(), validate_gitlab_ci_template(),
  validate_generated_ci_template(), validate_required_sections(),
  CiTemplateKind enum, and associated tests.

- Clean up unused imports: RenderConfig, CacheConfig, yaml_block,
  GitHubActionsProvider, GitLabCiProvider, CiRenderer, WorkspaceBinary,
  fmt::Write.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
Delete the WorkflowSpec-to-DAG bridge (workflow_specs_to_dag,
render_github_actions_from_workflow_specs,
render_gitlab_ci_from_workflow_specs) — ~190 lines.

The transport/ci/render.rs types (RenderConfig, SharedStep, CacheConfig)
are still used by the runtime CI provider implementations
(GitHubActionsProvider, GitLabCiProvider) for step-mode progress
rendering. Cleaning those up requires migrating the runtime rendering
path and is deferred.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
- Merge format_render.dag into std/render.dag: one unified render
  module with terminal rendering IR, format-aware primitives (derived
  from language models), and structured-text building blocks.

- Move yaml_render.dag to extdeps/yaml.dag: YAML is an external
  dependency (like Make, Clippy), not a standard library concept.
  Thin parameterization of std/render.dag for YAML syntax.

- Delete std/format_render.dag and std/yaml_render.dag.

- Update tools/cigen.dag import: std.yaml_render -> extdeps.yaml.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
@briansrls
briansrls marked this pull request as ready for review February 28, 2026 13:14
Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>

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Comment thread dsl/tools/cigen.dag Outdated
Comment thread gunbc-dag/src/bin/codegen_cli.rs Outdated
cursoragent and others added 8 commits February 28, 2026 13:22
- render.dag: replace ?? with match for comment_prefix_for (typechecker
  infers String? from ?? despite fallback being String)

- cigen.dag: restructure to avoid patterns the typechecker can't handle:
  - Remove typed intermediate records (Workflow, Job, Step, Cache,
    Pipeline) — render directly to strings instead. The typechecker
    doesn't coerce sum type variants to parent types or record literals
    to named types across module boundaries.
  - Inline config data (branches, permissions, env) as literals instead
    of cross-module data references that resolve as Any.
  - All 316 daglang-cli tests pass (was 298/316).

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
- module_graph: add config.ci, extdeps.github_actions, extdeps.gitlab_ci,
  extdeps.yaml, tools.cigen; update std.render dep count (3→6).
- extern_ratchet: bump baselines (extern func 2→3, extern impl 6→7)
  for discover_ci_config extern bridge.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
- Remove shared.dag_util import from std/render.dag (layer 0 cannot
  import from shared/ layer 5). The format_document/render_format_document
  functions that depended on it are removed — tools that need Document
  construction import dag_util directly.
- Update std.render dep count snapshot (6→4).
- Add new files to daglang-syntax corpus inventory.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
DSL discovery finds tools/cigen.dag and generates cigen + cigen-dry
Make targets alongside the existing tool targets.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
- Add Cigen variant to WorkspaceBinary enum (binaries.rs)
- Add tools.cigen::cigen and std.width::truncate_text to passthrough
  callable allowlist (tool_registration.rs)

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
The codegen-generated binary needs a Cargo.toml declaration
pointing to target/codegen/bin/cigen/main.rs, matching the
pattern of other DSL-discovered tools (makegen, pragma, etc.).

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
Passing Some("written") to execute_and_display made cigen fail when
content_upsert returned written=false (file already up-to-date). This
broke idempotent reruns. Pass None instead — cigen succeeds if the
graph executes without errors, regardless of whether files changed.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
21-item queue (ED-1 through ED-21) for tautological modeling of all
external systems the SDLC scenario touches: GitHub APIs, GCP services,
AWS services, Azure services, LLM providers, Git, Cargo.

Includes design direction:
- Pattern to follow (types + data, zero opinions)
- File layout (extdeps/cloud/{gcp,aws,azure}/, extdeps/github/, etc.)
- Layering explanation (extdeps -> config -> services -> tools)
- Design decisions (CAS modeling, auth layering, granularity)
- Priority order (GitHub first, then GCP, then LLM, then CLI tools)

Also marks CG-1:5 as done in blue backlog.

Co-authored-by: Brian Searls <briansrls@users.noreply.github.com>
briansrls added a commit that referenced this pull request May 14, 2026
infer.rs is now PB-0 cycle-4 generated output; keep gate #94 helpers in
standalone memory_peak_cost.rs and re-list it in SG-0 NON_TEST.

Co-authored-by: Cursor <cursoragent@cursor.com>
@briansrls
briansrls deleted the cursor/ci-dsl-dag-design-8001 branch June 1, 2026 18:41
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