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Merged
OgeonX-Ai merged 2 commits into from
Jun 13, 2026
Merged

feat: publish immutable golden-path evidence bundle #2

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f2abd33
feat(evidence): publish immutable golden-path bundle
Aitomates Jun 13, 2026
c08ba32
chore(evidence): preserve immutable artifact bytes
Aitomates Jun 13, 2026
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1 change: 1 addition & 0 deletions .gitattributes
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Expand Up @@ -11,3 +11,4 @@ Dockerfile text eol=lf
*.toml text eol=lf
*.ps1 text eol=crlf
tests/contracts/cas-contracts/v0.1.0/*.json -text -diff
evidence/verified-local-golden-path-v0.1/artifacts/** -text -diff
1 change: 1 addition & 0 deletions .github/workflows/ci.yml
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Expand Up @@ -21,4 +21,5 @@ jobs:
- run: python -m ruff check .
- run: python -m mypy
- run: python -m pytest
- run: python -m cas_reference_product.evidence
- run: docker build --platform linux/amd64 -t cas-reference-product:ci .
2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -63,9 +63,9 @@ The image runs as a non-root user, listens on port `8080`, and provides `/health
- [Architecture](docs/architecture.md)
- [Threat model](docs/threat-model.md)
- [Operations](docs/operations.md)
- [Immutable golden-path case-study evidence](docs/case-study-evidence.md)
- [cas-platform interface](deployment/cas-platform.interface.yaml)

## Security

Report vulnerabilities through GitHub private vulnerability reporting. Do not include credentials or sensitive prompt data in issues.

45 changes: 45 additions & 0 deletions docs/case-study-evidence.md
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# Immutable Golden-Path Evidence

The committed bundle under
`evidence/verified-local-golden-path-v0.1/` is the case-study evidence for one
verified local golden-path execution. It connects four independently versioned
CAS repositories without claiming an Azure deployment.

## What The Bundle Proves

- `cas-reference-product` served the deterministic local workflow over HTTP.
- `cas-evals` evaluated the actual returned output and preserved lifecycle and
trace identifiers.
- The published `cas-contracts` v0.1.0 registry manifest is pinned by SHA-256.
- Every schema digest referenced by that registry manifest is verified before
the canonical records are validated against the exact published schemas.
- The evaluation fixture, normalized evidence, fixture digest, and returned
output digest are verified together.
- The `cas-platform` what-if script is pinned as a non-deploying interface
reference. No what-if output or Azure deployment is claimed.
- Every included artifact digest and immutable source SHA is checked offline in
tests and CI.

The canonical `artifact-manifest.json` and `verification-result.json` conform to
the vendored `cas-contracts` `ArtifactManifest` and `VerificationResult`
schemas. `bundle.json` maps their URN evidence identifiers to committed files
and records the claim boundaries.

## Container Digest Boundary

The bundle does not claim a container image digest. The repository builds a
local image in CI, but it does not publish a reproducible registry artifact
whose digest can be independently resolved. The canonical verification result
therefore marks this check as `skipped` rather than substituting a mutable tag
or local image ID.

## Verify

```powershell
./scripts/validate.ps1
./scripts/verify-evidence.ps1
```

The verifier is network-free. It fails when an artifact changes, a digest is
malformed, a source URI is not pinned to its full commit SHA, the golden result
does not pass exactly one case, or the platform evidence claims deployment.
43 changes: 43 additions & 0 deletions evidence/verified-local-golden-path-v0.1/artifact-manifest.json
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{
"kind": "ArtifactManifest",
"correlationId": "cas-reference-product-golden-v0.1",
"promptId": "reference-product-golden-workflow",
"runId": "cas-reference-product-golden-v0.1",
"repo": "Coding-Autopilot-System/cas-reference-product",
"actor": {
"id": "evidence-bundle-ci",
"type": "workflow"
},
"timestamp": "2026-06-13T00:00:00Z",
"schemaVersion": "0.1.0",
"traceContext": {
"traceparent": "00-0f32a2f22b960e873c92cecabc6f8dea-afb7553009ebcb9d-01"
},
"artifacts": [
{
"kind": "source-provenance",
"uri": "urn:cas-evidence:verified-local-golden-path-v0.1:source-provenance",
"sha256": "d621003fea89b9e0a6af8ce87c1e6f60e42ad9a6df5f775a778dcccbafc6aa18"
},
{
"kind": "contract-registry-manifest",
"uri": "urn:cas-evidence:verified-local-golden-path-v0.1:contract-registry-manifest",
"sha256": "92a09b0907e08b022f96b89ce09764b0416d268acc38653e08fd335b5e5198f9"
},
{
"kind": "evaluation-result",
"uri": "urn:cas-evidence:verified-local-golden-path-v0.1:eval-evidence",
"sha256": "6d95d47fbdf422ff8fc3608b53b283e99b3f74b135d3876c7a1a4557dde2a8e7"
},
{
"kind": "evaluation-fixture",
"uri": "urn:cas-evidence:verified-local-golden-path-v0.1:golden-fixture",
"sha256": "667fc47e19c3910dcc202063d8167f1acf6417e4cb35b705f8862a2886c5188a"
},
{
"kind": "platform-what-if-reference",
"uri": "urn:cas-evidence:verified-local-golden-path-v0.1:platform-what-if-reference",
"sha256": "d6c57d4fb80aa168025368134ff8022f3a8328a92936503518e460aef03907ad"
}
]
}
45 changes: 45 additions & 0 deletions evidence/verified-local-golden-path-v0.1/artifacts/contract-registry-manifest.json
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{
"version": "0.1.0",
"schemas": [
{
"id": "https://schemas.coding-autopilot.dev/v0.1/artifact-manifest.schema.json",
"path": "artifact-manifest.schema.json",
"sha256": "2864e3ef2c7ab8114395d15a2f6b4b1e832049c0a3a2b8a1165ba287f61caa06"
},
{
"id": "https://schemas.coding-autopilot.dev/v0.1/common.schema.json",
"path": "common.schema.json",
"sha256": "c7ce72a6f5da8394e48f2421820588a8142546962e05152997bd1e6ced994928"
},
{
"id": "https://schemas.coding-autopilot.dev/v0.1/evaluation-result.schema.json",
"path": "evaluation-result.schema.json",
"sha256": "be6d3216c95cfa6d2ccda908ff089010765b1c70223a920bfe3cb70a0cd24df5"
},
{
"id": "https://schemas.coding-autopilot.dev/v0.1/policy-decision.schema.json",
"path": "policy-decision.schema.json",
"sha256": "21a66d651f5c0190fe0b50b81350ab32d29190d1c44719e2584628a8e0e6614f"
},
{
"id": "https://schemas.coding-autopilot.dev/v0.1/prompt-envelope.schema.json",
"path": "prompt-envelope.schema.json",
"sha256": "baf043344abe6bf9afbc31272bef8034ec46ffc4d3fc799a41fead002b7274d6"
},
{
"id": "https://schemas.coding-autopilot.dev/v0.1/run-event.schema.json",
"path": "run-event.schema.json",
"sha256": "6e96cb3e690ab4fcbcbe75005b27c14d83595c4951cabc35bed86b41fc2f0a7f"
},
{
"id": "https://schemas.coding-autopilot.dev/v0.1/verification-result.schema.json",
"path": "verification-result.schema.json",
"sha256": "3ef6085b19c726204b65c9f8fd815a8aa0dcda6a8db82acdbd61e56bce45b4c9"
},
{
"id": "https://schemas.coding-autopilot.dev/v0.1/work-request.schema.json",
"path": "work-request.schema.json",
"sha256": "7a6d5aee580d0198336c704cd9b154bc6c08bca15ec77be9c5db965cf54a9606"
}
]
}
31 changes: 31 additions & 0 deletions evidence/verified-local-golden-path-v0.1/artifacts/contracts/artifact-manifest.schema.json
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://schemas.coding-autopilot.dev/v0.1/artifact-manifest.schema.json",
"title": "ArtifactManifest",
"type": "object",
"allOf": [
{
"$ref": "common.schema.json#/$defs/lifecycleMetadata"
},
{
"type": "object",
"required": [
"kind",
"artifacts"
],
"properties": {
"kind": {
"const": "ArtifactManifest"
},
"artifacts": {
"type": "array",
"minItems": 1,
"items": {
"$ref": "common.schema.json#/$defs/evidence"
}
}
}
}
],
"unevaluatedProperties": false
}
68 changes: 68 additions & 0 deletions evidence/verified-local-golden-path-v0.1/artifacts/contracts/common.schema.json
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://schemas.coding-autopilot.dev/v0.1/common.schema.json",
"title": "CAS Common Definitions",
"$defs": {
"actor": {
"type": "object",
"additionalProperties": false,
"required": ["id", "type"],
"properties": {
"id": { "type": "string", "minLength": 1, "maxLength": 256 },
"type": {
"type": "string",
"enum": ["human", "agent", "service", "workflow"]
},
"displayName": { "type": "string", "minLength": 1, "maxLength": 256 }
}
},
"traceContext": {
"type": "object",
"additionalProperties": false,
"required": ["traceparent"],
"properties": {
"traceparent": {
"type": "string",
"pattern": "^[\\da-f]{2}-[\\da-f]{32}-[\\da-f]{16}-[\\da-f]{2}$"
},
"tracestate": { "type": "string", "maxLength": 512 }
}
},
"lifecycleMetadata": {
"type": "object",
"required": [
"correlationId",
"promptId",
"runId",
"repo",
"actor",
"timestamp",
"schemaVersion",
"traceContext"
],
"properties": {
"correlationId": { "type": "string", "minLength": 1, "maxLength": 128 },
"promptId": { "type": "string", "minLength": 1, "maxLength": 128 },
"runId": { "type": "string", "minLength": 1, "maxLength": 128 },
"repo": {
"type": "string",
"pattern": "^[A-Za-z0-9_.-]+/[A-Za-z0-9_.-]+$"
},
"actor": { "$ref": "#/$defs/actor" },
"timestamp": { "type": "string", "format": "date-time" },
"schemaVersion": { "const": "0.1.0" },
"traceContext": { "$ref": "#/$defs/traceContext" }
}
},
"evidence": {
"type": "object",
"additionalProperties": false,
"required": ["kind", "uri"],
"properties": {
"kind": { "type": "string", "minLength": 1, "maxLength": 64 },
"uri": { "type": "string", "format": "uri" },
"sha256": { "type": "string", "pattern": "^[\\da-f]{64}$" }
}
}
}
}
45 changes: 45 additions & 0 deletions evidence/verified-local-golden-path-v0.1/artifacts/contracts/evaluation-result.schema.json
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://schemas.coding-autopilot.dev/v0.1/evaluation-result.schema.json",
"title": "EvaluationResult",
"type": "object",
"allOf": [
{
"$ref": "common.schema.json#/$defs/lifecycleMetadata"
},
{
"type": "object",
"required": [
"kind",
"evaluator",
"outcome",
"metrics"
],
"properties": {
"kind": {
"const": "EvaluationResult"
},
"evaluator": {
"type": "string",
"minLength": 1,
"maxLength": 256
},
"outcome": {
"enum": [
"passed",
"failed",
"inconclusive"
]
},
"metrics": {
"type": "object",
"minProperties": 1,
"additionalProperties": {
"type": "number"
}
}
}
}
],
"unevaluatedProperties": false
}
47 changes: 47 additions & 0 deletions evidence/verified-local-golden-path-v0.1/artifacts/contracts/policy-decision.schema.json
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://schemas.coding-autopilot.dev/v0.1/policy-decision.schema.json",
"title": "PolicyDecision",
"type": "object",
"allOf": [
{
"$ref": "common.schema.json#/$defs/lifecycleMetadata"
},
{
"type": "object",
"required": [
"kind",
"decision",
"policyVersion",
"reasons"
],
"properties": {
"kind": {
"const": "PolicyDecision"
},
"decision": {
"enum": [
"allow",
"deny",
"require-approval"
]
},
"policyVersion": {
"type": "string",
"minLength": 1,
"maxLength": 64
},
"reasons": {
"type": "array",
"minItems": 1,
"items": {
"type": "string",
"minLength": 1,
"maxLength": 1000
}
}
}
}
],
"unevaluatedProperties": false
}
44 changes: 44 additions & 0 deletions evidence/verified-local-golden-path-v0.1/artifacts/contracts/prompt-envelope.schema.json
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{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://schemas.coding-autopilot.dev/v0.1/prompt-envelope.schema.json",
"title": "PromptEnvelope",
"type": "object",
"allOf": [
{
"$ref": "common.schema.json#/$defs/lifecycleMetadata"
},
{
"type": "object",
"required": [
"kind",
"intent",
"prompt"
],
"properties": {
"kind": {
"const": "PromptEnvelope"
},
"intent": {
"type": "string",
"minLength": 1,
"maxLength": 256
},
"prompt": {
"type": "string",
"minLength": 1,
"maxLength": 50000
},
"constraints": {
"type": "array",
"items": {
"type": "string",
"minLength": 1,
"maxLength": 1000
},
"uniqueItems": true
}
}
}
],
"unevaluatedProperties": false
}
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