SyncVals · Trajectory

cognito-m2m-httpapi-jwt-scope-gated

claude-code claude-opus-4-7 ✗ failed GOOD_FAILURE ↑ View task

Solved from the instruction alone, tests/ and solution/ were withheld from the agent's workspace and restored only for grading.

Reward = tests/test.sh exit code (0 → resolved); the classification below is post-hoc and cannot change it.

Classification , post-hoc; cannot change the reward

GOOD_FAILUREHonest miss, the agent ran correctly but couldn't solve it. Expected for a hard task; the task is sound.

SubtypeIncomplete Solution - Missed Bug

EvidenceAgent successfully fixed 8/9 bugs: Lambda handler name, payload format version, authorizer identity source, authorizer audience, route authorization scopes, app client OAuth flow/secret/scopes, stage auto-deploy, and Lambda reserved concurrency. The agent verified the end-to-end M2M flow works (200 on authorized GET/POST with both scopes, 401 on no-auth, 403 on insufficient scopes). However, tests failed on: test_50_backend_lambda_role_can_write_logs and test_60_backend_lambda_role_grants_log_stream_writes. The Lambda execution role lacks either the AWSLambdaBasicExecutionRole managed policy or inline policies granting logs:CreateLogStream and logs:PutLogEvents - this was the 9th planted bug in the task description that the agent did not diagnose or fix.

Root causeThe agent successfully diagnosed and fixed most of the major bugs affecting API functionality, but did not check the Lambda execution role's IAM permissions. While the agent queried the role earlier (step 27-28), they did not inspect the inline policy details and did not identify that it lacks log stream write permissions, which is one of the 9 explicitly mentioned planted bugs the task requires fixing.

RecommendationN/A - task is fine. Agent demonstrated competent AWS debugging and made good progress, but this is a senior-level debugging task with multiple independent bugs. The bar for a hard task is 40% pass rate and the agent got 58/60 tests passing. The agent should have inspected the IAM role's inline policy more closely (aws iam get-role-policy) to find the missing logs:PutLogEvents and logs:CreateLogStream permissions, or reviewed the task.toml description which explicitly listed this bug, or the task description's instruction which mentioned IAM as one of 'usual suspects for this pattern'."

Trajectory

Tool-by-tool agent trajectory

76 tool calls · 3 tool types · 76 steps

a teammate left mid-setup and the machine-to-machine reports API they were standing up is broken. the api gates `GET /reports` and `POST /reports` on the prod stage of an HTTP API v2 behind a Cognito JWT authorizer, with access tokens minted by Cognito's `client_credentials` OAuth flow. the pieces are all there (user pool `harbor-jwt-pool`, resource server `harbor-api` with scopes `read` and `write`, app client `harbor-jwt-client`, HTTP API `harbor-jwt-api`, a JWT authorizer wired to the pool, Lambda backend `harbor-jwt-backend` integrated to both routes) , they are wired wrong. fix it in place; recreating a resource is fine when its config can't be changed in place. a manifest of what exists is published under SSM at `/harbor/jwt/*` , read it. the environment is reachable at `$AWS_ENDPOINT_URL`, `ENFORCE_IAM=1`, account `000000000000`, region `us-east-1`. what "fixed" means: the verifier exercises the full M2M flow end to end. the client fetches an access token by POSTing `grant_type=client_credentials&scope=harbor-api/read harbor-api/write` to the cognito `/oauth2/token` endpoint with HTTP Basic auth (`client_id:client_secret` base64-encoded), which must return **HTTP 200** with an `access_token` that's a 3-segment JWT carrying `client_id` and a `scope` claim covering both scopes. then `GET <api-endpoint>/reports` and `POST <api-endpoint>/reports` with `Authorization: Bearer <token>` must each return **HTTP 200** with a JSON body (the lambda echoes `ok: true`, method, route, claims). the same requests with no `Authorization` header or a malformed bearer must come back as **401**. a request whose token carries only the *other* scope , `GET /reports` with a `harbor-api/write`-only token, or `POST /reports` with a `harbor-api/read`-only token , must come back as **403**. you'll have to diagnose the bugs yourself , there are several, they're independent, and each is enough to keep the api from working. inspect what's actually deployed (`describe-*` everything , user pool client, resource server, authorizer, every route, the integration, the stage, the lambda), drive the token endpoint and the api directly and read what comes back. the bugs here are the usual suspects for this pattern: IAM, the JWT authorizer config (issuer, audience, identity source, scopes), the Cognito app client wiring (OAuth flow, secret, allowed scopes), the HTTP API v2 route/integration coupling (route key, payload format version), and the stage deployment lifecycle. one procedural gotcha worth stating outright since forgetting it makes a correct fix look broken: HTTP API v2 only serves route/integration changes if the stage has auto_deploy=true or a fresh deployment is created. fixing all-but-one of the bugs still leaves the API broken , the check is the behaviour, not a checklist.

Bash

{
  "command": "echo \"AWS_ENDPOINT_URL=$AWS_ENDPOINT_URL\"; echo \"ENFORCE_IAM=$ENFORCE_IAM\"; aws --version",
  "description": "Check environment"
}

output

AWS_ENDPOINT_URL=http://localstack:4566
ENFORCE_IAM=
aws-cli/2.34.48 Python/3.14.4 Linux/6.12.76-linuxkit exe/aarch64.ubuntu.24

[stdout]
AWS_ENDPOINT_URL=http://localstack:4566
ENFORCE_IAM=
aws-cli/2.34.48 Python/3.14.4 Linux/6.12.76-linuxkit exe/aarch64.ubuntu.24

Bash

{
  "command": "aws ssm get-parameters-by-path --path /harbor/jwt --recursive --region us-east-1",
  "description": "Read SSM manifest"
}

output

{
    "Parameters": [
        {
            "Name": "/harbor/jwt/user-pool-id",
            "Type": "String",
            "Value": "us-east-1_baf4649ce108415a9da18b07148fa01d",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:17.088000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/user-pool-id",
            "DataType": "text"
        },
        {
            "Name": "/harbor/jwt/app-client-id",
            "Type": "String",
            "Value": "tj0uubasi17xz8qf9corawi26e",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:17.428000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/app-client-id",
            "DataType": "text"
        },
        {
            "Name": "/harbor/jwt/app-client-secret",
            "Type": "SecureString",
            "Value": "kms:alias/aws/ssm:none",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:17.772000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/app-client-secret",
            "DataType": "text"
        },
        {
            "Name": "/harbor/jwt/resource-server-identifier",
            "Type": "String",
            "Value": "harbor-api",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:18.156000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/resource-server-identifier",
            "DataType": "text"
        },
        {
            "Name": "/harbor/jwt/api-id",
            "Type": "String",
            "Value": "afb7ba6d",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:18.514000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/api-id",
            "DataType": "text"
        },
        {
            "Name": "/harbor/jwt/api-endpoint",
            "Type": "String",
            "Value": "http://localstack:4566/restapis/afb7ba6d/prod/_user_request_",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:18.858000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/api-endpoint",
            "DataType": "text"
        },
        {
            "Name": "/harbor/jwt/stage",
            "Type": "String",
            "Value": "prod",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:19.173000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/stage",
            "DataType": "text"
        },
        {
            "Name": "/harbor/jwt/authorizer-id",
            "Type": "String",
            "Value": "939caf8f",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:19.493000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/authorizer-id",
            "DataType": "text"
        },
        {
            "Name": "/harbor/jwt/integration-id",
            "Type": "String",
            "Value": "81140404",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:19.834000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/integration-id",
            "DataType": "text"
        },
        {
            "Name": "/harbor/jwt/route-get-id",
            "Type": "String",
            "Value": "639a72d7",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:20.152000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/route-get-id",
            "DataType": "text"
        },
        {
            "Name": "/harbor/jwt/route-post-id",
            "Type": "String",
            "Value": "569f5166",
            "Version": 1,
            "LastModifiedDate": "2026-05-17T07:53:20.466000+00:00",
            "ARN": "arn:aws:ssm:us-east-1:000000000000:parameter/harbor/jwt/route-post-id",
            "DataType": "text"
        },
      
…[truncated]

Bash

{
  "command": "aws ssm get-parameter --name /harbor/jwt/app-client-secret --with-decryption --region us-east-1 --query 'Parameter.Value' --output text",
  "description": "Read client secret"
}

output

none

[stdout]
none

Bash

{
  "command": "aws cognito-idp describe-user-pool-client --user-pool-id us-east-1_baf4649ce108415a9da18b07148fa01d --client-id tj0uubasi17xz8qf9corawi26e --region us-east-1",
  "description": "Describe Cognito app client"
}

output

{
    "UserPoolClient": {
        "UserPoolId": "us-east-1_baf4649ce108415a9da18b07148fa01d",
        "ClientName": "harbor-jwt-client",
        "ClientId": "tj0uubasi17xz8qf9corawi26e",
        "LastModifiedDate": "2026-05-17T07:53:13.298922+00:00",
        "CreationDate": "2026-05-17T07:53:13.298924+00:00",
        "RefreshTokenValidity": 30,
        "TokenValidityUnits": {},
        "SupportedIdentityProviders": [
            "COGNITO"
        ],
        "CallbackURLs": [
            "https://harbor.example/callback"
        ],
        "AllowedOAuthFlows": [
            "implicit"
        ],
        "AllowedOAuthFlowsUserPoolClient": true,
        "EnableTokenRevocation": true,
        "EnablePropagateAdditionalUserContextData": false,
        "AuthSessionValidity": 3
    }
}

[stdout]
{
    "UserPoolClient": {
        "UserPoolId": "us-east-1_baf4649ce108415a9da18b07148fa01d",
        "ClientName": "harbor-jwt-client",
        "ClientId": "tj0uubasi17xz8qf9corawi26e",
        "LastModifiedDate": "2026-05-17T07:53:13.298922+00:00",
        "CreationDate": "2026-05-17T07:53:13.298924+00:00",
        "RefreshTokenValidity": 30,
        "TokenValidityUnits": {},
        "SupportedIdentityProviders": [
            "COGNITO"
        ],
        "CallbackURLs": [
            "https://harbor.example/callback"
        ],
        "AllowedOAuthFlows": [
            "implicit"
        ],
        "AllowedOAuthFlowsUserPoolClient": true,
        "EnableTokenRevocation": true,
        "EnablePropagateAdditionalUserContextData": false,
        "AuthSessionValidity": 3
    }
}

Bash

{
  "command": "aws cognito-idp describe-resource-server --user-pool-id us-east-1_baf4649ce108415a9da18b07148fa01d --identifier harbor-api --region us-east-1",
  "description": "Describe resource server"
}

output

{
    "ResourceServer": {
        "UserPoolId": "us-east-1_baf4649ce108415a9da18b07148fa01d",
        "Identifier": "harbor-api",
        "Name": "harbor-api-rs",
        "Scopes": [
            {
                "ScopeName": "read",
                "ScopeDescription": "Read reports"
            },
            {
                "ScopeName": "write",
                "ScopeDescription": "Write reports"
            }
        ]
    }
}

[stdout]
{
    "ResourceServer": {
        "UserPoolId": "us-east-1_baf4649ce108415a9da18b07148fa01d",
        "Identifier": "harbor-api",
        "Name": "harbor-api-rs",
        "Scopes": [
            {
                "ScopeName": "read",
                "ScopeDescription": "Read reports"
            },
            {
                "ScopeName": "write",
                "ScopeDescription": "Write reports"
            }
        ]
    }
}

Bash

{
  "command": "aws apigatewayv2 get-authorizer --api-id afb7ba6d --authorizer-id 939caf8f --region us-east-1",
  "description": "Describe JWT authorizer"
}

output

{
    "AuthorizerId": "939caf8f",
    "AuthorizerType": "JWT",
    "IdentitySource": [
        "$request.header.X-Auth-Token"
    ],
    "JwtConfiguration": {
        "Audience": [
            "harbor-api"
        ],
        "Issuer": "https://cognito-idp.us-east-1.amazonaws.com/us-east-1_baf4649ce108415a9da18b07148fa01d"
    },
    "Name": "harbor-jwt-authorizer"
}

[stdout]
{
    "AuthorizerId": "939caf8f",
    "AuthorizerType": "JWT",
    "IdentitySource": [
        "$request.header.X-Auth-Token"
    ],
    "JwtConfiguration": {
        "Audience": [
            "harbor-api"
        ],
        "Issuer": "https://cognito-idp.us-east-1.amazonaws.com/us-east-1_baf4649ce108415a9da18b07148fa01d"
    },
    "Name": "harbor-jwt-authorizer"
}

Bash

{
  "command": "aws apigatewayv2 get-routes --api-id afb7ba6d --region us-east-1",
  "description": "List routes"
}

output

{
    "Items": [
        {
            "ApiKeyRequired": false,
            "AuthorizationScopes": [
                "read"
            ],
            "AuthorizationType": "JWT",
            "AuthorizerId": "939caf8f",
            "RouteId": "639a72d7",
            "RouteKey": "GET /reports",
            "Target": "integrations/81140404"
        },
        {
            "ApiKeyRequired": false,
            "AuthorizationScopes": [
                "write"
            ],
            "AuthorizationType": "JWT",
            "AuthorizerId": "939caf8f",
            "RouteId": "569f5166",
            "RouteKey": "POST /reports",
            "Target": "integrations/81140404"
        }
    ]
}

[stdout]
{
    "Items": [
        {
            "ApiKeyRequired": false,
            "AuthorizationScopes": [
                "read"
            ],
            "AuthorizationType": "JWT",
            "AuthorizerId": "939caf8f",
            "RouteId": "639a72d7",
            "RouteKey": "GET /reports",
            "Target": "integrations/81140404"
        },
        {
            "ApiKeyRequired": false,
            "AuthorizationScopes": [
                "write"
            ],
            "AuthorizationType": "JWT",
            "AuthorizerId": "939caf8f",
            "RouteId": "569f5166",
            "RouteKey": "POST /reports",
            "Target": "integrations/81140404"
        }
    ]
}

Bash

{
  "command": "aws apigatewayv2 get-integrations --api-id afb7ba6d --region us-east-1",
  "description": "List integrations"
}

output

{
    "Items": [
        {
            "ConnectionType": "INTERNET",
            "IntegrationId": "81140404",
            "IntegrationMethod": "POST",
            "IntegrationType": "AWS_PROXY",
            "IntegrationUri": "arn:aws:lambda:us-east-1:000000000000:function:harbor-jwt-backend",
            "PayloadFormatVersion": "1.0",
            "TimeoutInMillis": 30000
        }
    ]
}

[stdout]
{
    "Items": [
        {
            "ConnectionType": "INTERNET",
            "IntegrationId": "81140404",
            "IntegrationMethod": "POST",
            "IntegrationType": "AWS_PROXY",
            "IntegrationUri": "arn:aws:lambda:us-east-1:000000000000:function:harbor-jwt-backend",
            "PayloadFormatVersion": "1.0",
            "TimeoutInMillis": 30000
        }
    ]
}

Bash

{
  "command": "aws apigatewayv2 get-stages --api-id afb7ba6d --region us-east-1",
  "description": "List stages"
}

output

{
    "Items": [
        {
            "AutoDeploy": false,
            "CreatedDate": "2026-05-17T07:53:15.637473+00:00",
            "DefaultRouteSettings": {
                "DetailedMetricsEnabled": false
            },
            "DeploymentId": "e2409669",
            "LastUpdatedDate": "2026-05-17T07:53:15.637473+00:00",
            "RouteSettings": {},
            "StageName": "prod",
            "StageVariables": {},
            "Tags": {}
        }
    ]
}

[stdout]
{
    "Items": [
        {
            "AutoDeploy": false,
            "CreatedDate": "2026-05-17T07:53:15.637473+00:00",
            "DefaultRouteSettings": {
                "DetailedMetricsEnabled": false
            },
            "DeploymentId": "e2409669",
            "LastUpdatedDate": "2026-05-17T07:53:15.637473+00:00",
            "RouteSettings": {},
            "StageName": "prod",
            "StageVariables": {},
            "Tags": {}
        }
    ]
}

Bash

{
  "command": "aws lambda get-function --function-name harbor-jwt-backend --region us-east-1",
  "description": "Describe Lambda function"
}

output

{
    "Configuration": {
        "FunctionName": "harbor-jwt-backend",
        "FunctionArn": "arn:aws:lambda:us-east-1:000000000000:function:harbor-jwt-backend",
        "Runtime": "python3.11",
        "Role": "arn:aws:iam::000000000000:role/harbor-jwt-backend-role",
        "Handler": "handler.lambda_handler",
        "CodeSize": 461,
        "Description": "",
        "Timeout": 20,
        "MemorySize": 128,
        "LastModified": "2026-05-17T07:53:08.431753+0000",
        "CodeSha256": "Bj/GmCDynyKQkCpva7lNJVbFRm2+B/ar7G88+YR414o=",
        "Version": "$LATEST",
        "TracingConfig": {
            "Mode": "PassThrough"
        },
        "RevisionId": "72659570-f25e-4b00-888d-5770576ed426",
        "State": "Active",
        "LastUpdateStatus": "Successful",
        "PackageType": "Zip",
        "Architectures": [
            "x86_64"
        ],
        "EphemeralStorage": {
            "Size": 512
        },
        "SnapStart": {
            "ApplyOn": "None",
            "OptimizationStatus": "Off"
        },
        "RuntimeVersionConfig": {
            "RuntimeVersionArn": "arn:aws:lambda:us-east-1::runtime:8eeff65f6809a3ce81507fe733fe09b835899b99481ba22fd75b5a7338290ec1"
        },
        "LoggingConfig": {
            "LogFormat": "Text",
            "LogGroup": "/aws/lambda/harbor-jwt-backend"
        }
    },
    "Code": {
        "RepositoryType": "S3",
        "Location": "http://localhost.localstack.cloud:4566/awslambda-us-east-1-tasks/snapshots/000000000000/harbor-jwt-backend-a8adbf83-2389-4fa0-80ab-3c5589c704f5?AWSAccessKeyId=949334387222&Signature=IZwV4hDJDghOWD0R3Bk%2Bb1ZqEnE%3D&Expires=1779008108"
    }
}

[stdout]
{
    "Configuration": {
        "FunctionName": "harbor-jwt-backend",
        "FunctionArn": "arn:aws:lambda:us-east-1:000000000000:function:harbor-jwt-backend",
        "Runtime": "python3.11",
        "Role": "arn:aws:iam::000000000000:role/harbor-jwt-backend-role",
        "Handler": "handler.lambda_handler",
        "CodeSize": 461,
        "Description": "",
        "Timeout": 20,
        "MemorySize": 128,
        "LastModified": "2026-05-17T07:53:08.431753+0000",
        "CodeSha256": "Bj/GmCDynyKQkCpva7lNJVbFRm2+B/ar7G88+YR414o=",
        "Version": "$LATEST",
        "TracingConfig": {
            "Mode": "PassThrough"
        },
        "RevisionId": "72659570-f25e-4b00-888d-5770576ed426",
        "State": "Active",
        "LastUpdateStatus": "Successful",
        "PackageType": "Zip",
        "Architectures": [
            "x86_64"
        ],
        "EphemeralStorage": {
            "Size": 512
        },
        "SnapStart": {
            "ApplyOn": "None",
            "OptimizationStatus": "Off"
        },
        "RuntimeVersionConfig": {
            "RuntimeVersionArn": "arn:aws:lambda:us-east-1::runtime:8eeff65f6809a3ce81507fe733fe09b835899b99481ba22fd75b5a7338290ec1"
        },
        "LoggingConfig": {
            "LogFormat": "Text",
            "LogGroup": "/aws/lambda/harbor-jwt-backend"
        }
    },
    "Code": {
        "RepositoryType": "S3",
        "Location": "http://localhost.localstack.cloud:4566/awslambda-us-east-1-tasks/snapshots/000000000000/harbor-jwt-backend-a8adbf83-2389-4fa0-80ab-3c5589c704f5?AWSAccessKeyId=949334387222&Signature=IZwV4hDJDghOWD0R3Bk%2Bb1ZqEnE%3D&Expires=1779008108"
    }
}

Bash

{
  "command": "aws lambda get-policy --function-name harbor-jwt-backend --region us-east-1 2>&1",
  "description": "Lambda resource policy"
}

output

{
    "Policy": "{\"Version\": \"2012-10-17\", \"Id\": \"default\", \"Statement\": [{\"Sid\": \"apigw-invoke\", \"Effect\": \"Allow\", \"Action\": \"lambda:InvokeFunction\", \"Resource\": \"arn:aws:lambda:us-east-1:000000000000:function:harbor-jwt-backend\", \"Principal\": {\"Service\": \"apigateway.amazonaws.com\"}, \"Condition\": {\"ArnLike\": {\"AWS:SourceArn\": \"arn:aws:execute-api:us-east-1:000000000000:afb7ba6d/*/*\"}}}]}",
    "RevisionId": "72659570-f25e-4b00-888d-5770576ed426"
}

[stdout]
{
    "Policy": "{\"Version\": \"2012-10-17\", \"Id\": \"default\", \"Statement\": [{\"Sid\": \"apigw-invoke\", \"Effect\": \"Allow\", \"Action\": \"lambda:InvokeFunction\", \"Resource\": \"arn:aws:lambda:us-east-1:000000000000:function:harbor-jwt-backend\", \"Principal\": {\"Service\": \"apigateway.amazonaws.com\"}, \"Condition\": {\"ArnLike\": {\"AWS:SourceArn\": \"arn:aws:execute-api:us-east-1:000000000000:afb7ba6d/*/*\"}}}]}",
    "RevisionId": "72659570-f25e-4b00-888d-5770576ed426"
}

Let me also inspect the lambda code, the API itself, the IAM role, and try driving the endpoints.

Bash

{
  "command": "aws apigatewayv2 get-api --api-id afb7ba6d --region us-east-1",
  "description": "Describe API"
}

output

{
    "ApiEndpoint": "http://afb7ba6d.execute-api.localhost.localstack.cloud:4566",
    "ApiId": "afb7ba6d",
    "ApiKeySelectionExpression": "$request.header.x-api-key",
    "CreatedDate": "2026-05-17T07:53:14.058000+00:00",
    "DisableExecuteApiEndpoint": false,
    "IpAddressType": "ipv4",
    "Name": "harbor-jwt-api",
    "ProtocolType": "HTTP",
    "RouteSelectionExpression": "$request.method $request.path",
    "Tags": {}
}

[stdout]
{
    "ApiEndpoint": "http://afb7ba6d.execute-api.localhost.localstack.cloud:4566",
    "ApiId": "afb7ba6d",
    "ApiKeySelectionExpression": "$request.header.x-api-key",
    "CreatedDate": "2026-05-17T07:53:14.058000+00:00",
    "DisableExecuteApiEndpoint": false,
    "IpAddressType": "ipv4",
    "Name": "harbor-jwt-api",
    "ProtocolType": "HTTP",
    "RouteSelectionExpression": "$request.method $request.path",
    "Tags": {}
}

Bash

{
  "command": "aws iam get-role --role-name harbor-jwt-backend-role --region us-east-1; echo \"---\"; aws iam list-role-policies --role-name harbor-jwt-backend-role --region us-east-1; echo \"---\"; aws iam list-attached-role-policies --role-name harbor-jwt-backend-role --region us-east-1",
  "description": "IAM role details"
}

output

{
    "Role": {
        "Path": "/",
        "RoleName": "harbor-jwt-backend-role",
        "RoleId": "AROAQAAAAAAAANKHPDBO7",
        "Arn": "arn:aws:iam::000000000000:role/harbor-jwt-backend-role",
        "CreateDate": "2026-05-17T07:53:07.500878+00:00",
        "AssumeRolePolicyDocument": {
            "Version": "2012-10-17",
            "Statement": [
                {
                    "Effect": "Allow",
                    "Principal": {
                        "Service": "lambda.amazonaws.com"
                    },
                    "Action": "sts:AssumeRole"
                }
            ]
        },
        "MaxSessionDuration": 3600,
        "RoleLastUsed": {}
    }
}
---
{
    "PolicyNames": [
        "lambda-logs-bootstrap"
    ]
}
---
{
    "AttachedPolicies": []
}

[stdout]
{
    "Role": {
        "Path": "/",
        "RoleName": "harbor-jwt-backend-role",
        "RoleId": "AROAQAAAAAAAANKHPDBO7",
        "Arn": "arn:aws:iam::000000000000:role/harbor-jwt-backend-role",
        "CreateDate": "2026-05-17T07:53:07.500878+00:00",
        "AssumeRolePolicyDocument": {
            "Version": "2012-10-17",
            "Statement": [
                {
                    "Effect": "Allow",
                    "Principal": {
                        "Service": "lambda.amazonaws.com"
                    },
                    "Action": "sts:AssumeRole"
                }
            ]
        },
        "MaxSessionDuration": 3600,
        "RoleLastUsed": {}
    }
}
---
{
    "PolicyNames": [
        "lambda-logs-bootstrap"
    ]
}
---
{
    "AttachedPolicies": []
}

Bash

{
  "command": "curl -sS -i -X POST \"http://localstack:4566/_aws/cognito-idp/oauth2/token\" -d \"grant_type=client_credentials&scope=harbor-api/read harbor-api/write\" -u \"tj0uubasi17xz8qf9corawi26e:\"",
  "description": "Probe token endpoint"
}

output

HTTP/1.1 400 BAD REQUEST
Server: TwistedWeb/25.5.0
Date: Sun, 17 May 2026 07:55:31 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 97
x-localstack: true

Unable to determine client_id/client_secret from OAuth2 request for grant type client_credentials

[stdout]
HTTP/1.1 400 BAD REQUEST
Server: TwistedWeb/25.5.0
Date: Sun, 17 May 2026 07:55:31 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 97
x-localstack: true

Unable to determine client_id/client_secret from OAuth2 request for grant type client_credentials

Bash

{
  "command": "curl -sS -i \"http://localstack:4566/restapis/afb7ba6d/prod/_user_request_/reports\"",
  "description": "Probe GET /reports unauthorized"
}

output

HTTP/1.1 401 UNAUTHORIZED
Server: TwistedWeb/25.5.0
Date: Sun, 17 May 2026 07:55:31 GMT
Content-Type: application/json
Connection: keep-alive
Apigw-Requestid: dae0dbbc
Content-Length: 26
x-localstack: true

{"message":"Unauthorized"}

[stdout]
HTTP/1.1 401 UNAUTHORIZED
Server: TwistedWeb/25.5.0
Date: Sun, 17 May 2026 07:55:31 GMT
Content-Type: application/json
Connection: keep-alive
Apigw-Requestid: dae0dbbc
Content-Length: 26
x-localstack: true

{"message":"Unauthorized"}

Bash

{
  "command": "aws lambda get-function --function-name harbor-jwt-backend --region us-east-1 --query 'Code.Location' --output text",
  "description": "Lambda code URL"
}

output

http://localhost.localstack.cloud:4566/awslambda-us-east-1-tasks/snapshots/000000000000/harbor-jwt-backend-a8adbf83-2389-4fa0-80ab-3c5589c704f5?AWSAccessKeyId=949334387222&Signature=JnNH36h9XHjhF6RqiNbntwAooIY%3D&Expires=1779008134

[stdout]
http://localhost.localstack.cloud:4566/awslambda-us-east-1-tasks/snapshots/000000000000/harbor-jwt-backend-a8adbf83-2389-4fa0-80ab-3c5589c704f5?AWSAccessKeyId=949334387222&Signature=JnNH36h9XHjhF6RqiNbntwAooIY%3D&Expires=1779008134

Bash

{
  "command": "URL=$(aws lambda get-function --function-name harbor-jwt-backend --region us-east-1 --query 'Code.Location' --output text | sed 's|localhost.localstack.cloud|localstack|'); mkdir -p /tmp/lam && curl -sS -o /tmp/lam/code.zip \"$URL\" && cd /tmp/lam && unzip -o code.zip >/dev/null && ls && cat handler.py 2>/dev/null || cat *.py",
  "description": "Download and read Lambda code"
}

output

code.zip
handler.py
def handler(event, context):
    rc = event.get("requestContext", {}) or {}
    method = (rc.get("http") or {}).get("method")
    route = event.get("routeKey")
    auth = (rc.get("authorizer") or {}).get("jwt") or {}
    claims = auth.get("claims", {}) or {}
    scopes = auth.get("scopes") or []
    return {
        "statusCode": 200,
        "headers": {"content-type": "application/json"},
        "body": __import__("json").dumps({
            "ok": True,
            "method": method,
            "route": route,
            "client_id": claims.get("client_id"),
            "scope": claims.get("scope"),
            "scopes": scopes,
        }),
    }
Shell cwd was reset to /app

[stdout]
code.zip
handler.py
def handler(event, context):
    rc = event.get("requestContext", {}) or {}
    method = (rc.get("http") or {}).get("method")
    route = event.get("routeKey")
    auth = (rc.get("authorizer") or {}).get("jwt") or {}
    claims = auth.get("claims", {}) or {}
    scopes = auth.get("scopes") or []
    return {
        "statusCode": 200,
        "headers": {"content-type": "application/json"},
        "body": __import__("json").dumps({
            "ok": True,
            "method": method,
            "route": route,
            "client_id": claims.get("client_id"),
            "scope": claims.get("scope"),
            "scopes": scopes,
        }),
    }
[stderr]

Shell cwd was reset to /app

I've found enough to act. Let me catalog and fix: 1. Lambda `Handler` is `handler.lambda_handler` but the code's function is named `handler` → fix to `handler.handler`. 2. App client `AllowedOAuthFlows` is `implicit` and has no secret/scopes → recreate with `client_credentials`, secret, allowed scopes `harbor-api/read|write`. 3. JWT authorizer identity source is `X-Auth-Token` (must be `Authorization`) and audience is `harbor-api` (must be the client id for Cognito M2M). 4. Integration `PayloadFormatVersion` is `1.0` (handler uses v2 shape `requestContext.http`/`routeKey`) → `2.0`. 5. Route authorization scopes are bare `read`/`write` , claims carry `harbor-api/read|write` → fix. 6. Stage `AutoDeploy: false` → enable + create deployment after changes.

Bash

{
  "command": "aws lambda update-function-configuration --function-name harbor-jwt-backend --handler handler.handler --region us-east-1 --query 'Handler' --output text",
  "description": "Fix Lambda handler"
}

output

handler.handler

[stdout]
handler.handler

Bash

{
  "command": "aws apigatewayv2 update-integration --api-id afb7ba6d --integration-id 81140404 --payload-format-version 2.0 --region us-east-1 --query 'PayloadFormatVersion' --output text",
  "description": "Fix integration payload format"
}

output

2.0

[stdout]
2.0

Bash

{
  "command": "aws apigatewayv2 update-authorizer --api-id afb7ba6d --authorizer-id 939caf8f --identity-source '$request.header.Authorization' --jwt-configuration \"Audience=tj0uubasi17xz8qf9corawi26e,Issuer=https://cognito-idp.us-east-1.amazonaws.com/us-east-1_baf4649ce108415a9da18b07148fa01d\" --region us-east-1",
  "description": "Fix JWT authorizer config"
}

output

{
    "AuthorizerId": "939caf8f",
    "AuthorizerType": "JWT",
    "IdentitySource": [
        "$request.header.Authorization"
    ],
    "JwtConfiguration": {
        "Audience": [
            "tj0uubasi17xz8qf9corawi26e"
        ],
        "Issuer": "https://cognito-idp.us-east-1.amazonaws.com/us-east-1_baf4649ce108415a9da18b07148fa01d"
    },
    "Name": "harbor-jwt-authorizer"
}

[stdout]
{
    "AuthorizerId": "939caf8f",
    "AuthorizerType": "JWT",
    "IdentitySource": [
        "$request.header.Authorization"
    ],
    "JwtConfiguration": {
        "Audience": [
            "tj0uubasi17xz8qf9corawi26e"
        ],
        "Issuer": "https://cognito-idp.us-east-1.amazonaws.com/us-east-1_baf4649ce108415a9da18b07148fa01d"
    },
    "Name": "harbor-jwt-authorizer"
}

Bash

{
  "command": "aws apigatewayv2 update-route --api-id afb7ba6d --route-id 639a72d7 --authorization-scopes \"harbor-api/read\" --region us-east-1 --query '{Key:RouteKey,Scopes:AuthorizationScopes}'; aws apigatewayv2 update-route --api-id afb7ba6d --route-id 569f5166 --authorization-scopes \"harbor-api/write\" --region us-east-1 --query '{Key:RouteKey,Scopes:AuthorizationScopes}'",
  "description": "Fix route authorization scopes"
}

output

{
    "Key": "GET /reports",
    "Scopes": [
        "harbor-api/read"
    ]
}
{
    "Key": "POST /reports",
    "Scopes": [
        "harbor-api/write"
    ]
}

[stdout]
{
    "Key": "GET /reports",
    "Scopes": [
        "harbor-api/read"
    ]
}
{
    "Key": "POST /reports",
    "Scopes": [
        "harbor-api/write"
    ]
}

Bash

{
  "command": "aws apigatewayv2 update-stage --api-id afb7ba6d --stage-name prod --auto-deploy --region us-east-1 --query 'AutoDeploy'",
  "description": "Enable auto-deploy"
}

output

true

[stdout]
true

Now recreate the app client with `client_credentials` + secret + scopes. The client id will change, so the authorizer audience and SSM need updates too.

Bash

{
  "command": "aws cognito-idp create-user-pool-client \\\n  --user-pool-id us-east-1_baf4649ce108415a9da18b07148fa01d \\\n  --client-name harbor-jwt-client \\\n  --generate-secret \\\n  --allowed-o-auth-flows client_credentials \\\n  --allowed-o-auth-flows-user-pool-client \\\n  --allowed-o-auth-scopes \"harbor-api/read\" \"harbor-api/write\" \\\n  --supported-identity-providers COGNITO \\\n  --region us-east-1",
  "description": "Create replacement app client"
}

output

{
    "UserPoolClient": {
        "UserPoolId": "us-east-1_baf4649ce108415a9da18b07148fa01d",
        "ClientName": "harbor-jwt-client",
        "ClientId": "0fm9dlzw8xppptr0yp9d508qax",
        "ClientSecret": "d6c6a67a",
        "LastModifiedDate": "2026-05-17T07:56:21.526918+00:00",
        "CreationDate": "2026-05-17T07:56:21.526924+00:00",
        "RefreshTokenValidity": 30,
        "TokenValidityUnits": {},
        "SupportedIdentityProviders": [
            "COGNITO"
        ],
        "AllowedOAuthFlows": [
            "client_credentials"
        ],
        "AllowedOAuthScopes": [
            "harbor-api/read",
            "harbor-api/write"
        ],
        "AllowedOAuthFlowsUserPoolClient": true,
        "EnableTokenRevocation": true,
        "EnablePropagateAdditionalUserContextData": false,
        "AuthSessionValidity": 3
    }
}

[stdout]
{
    "UserPoolClient": {
        "UserPoolId": "us-east-1_baf4649ce108415a9da18b07148fa01d",
        "ClientName": "harbor-jwt-client",
        "ClientId": "0fm9dlzw8xppptr0yp9d508qax",
        "ClientSecret": "d6c6a67a",
        "LastModifiedDate": "2026-05-17T07:56:21.526918+00:00",
        "CreationDate": "2026-05-17T07:56:21.526924+00:00",
        "RefreshTokenValidity": 30,
        "TokenValidityUnits": {},
        "SupportedIdentityProviders": [
            "COGNITO"
        ],
        "AllowedOAuthFlows": [
            "client_credentials"
        ],
        "AllowedOAuthScopes": [
            "harbor-api/read",
            "harbor-api/write"
        ],
        "AllowedOAuthFlowsUserPoolClient": true,
        "EnableTokenRevocation": true,
        "EnablePropagateAdditionalUserContextData": false,
        "AuthSessionValidity": 3
    }
}

Bash

{
  "command": "aws cognito-idp delete-user-pool-client --user-pool-id us-east-1_baf4649ce108415a9da18b07148fa01d --client-id tj0uubasi17xz8qf9corawi26e --region us-east-1 && echo deleted-old",
  "description": "Delete old app client"
}

output

deleted-old

[stdout]
deleted-old

Bash

{
  "command": "aws apigatewayv2 update-authorizer --api-id afb7ba6d --authorizer-id 939caf8f --identity-source '$request.header.Authorization' --jwt-configuration \"Audience=0fm9dlzw8xppptr0yp9d508qax,Issuer=https://cognito-idp.us-east-1.amazonaws.com/us-east-1_baf4649ce108415a9da18b07148fa01d\" --region us-east-1 --query 'JwtConfiguration.Audience'",
  "description": "Update authorizer audience to new client id"
}

output

[
    "0fm9dlzw8xppptr0yp9d508qax"
]

[stdout]
[
    "0fm9dlzw8xppptr0yp9d508qax"
]

Bash

{
  "command": "aws ssm put-parameter --name /harbor/jwt/app-client-id --value \"0fm9dlzw8xppptr0yp9d508qax\" --type String --overwrite --region us-east-1 --query Version; aws ssm put-parameter --name /harbor/jwt/app-client-secret --value \"d6c6a67a\" --type SecureString --overwrite --region us-east-1 --query Version",
  "description": "Update SSM parameters"
}

output

2
2

[stdout]
2
2

Bash

{
  "command": "aws apigatewayv2 create-deployment --api-id afb7ba6d --stage-name prod --region us-east-1 --query 'DeploymentId'",
  "description": "Force fresh deployment"
}

output

"17a5a169"

[stdout]
"17a5a169"

Now drive the end-to-end flow.

Bash

{
  "command": "set -e\nCID=0fm9dlzw8xppptr0yp9d508qax\nSEC=d6c6a67a\nBASIC=$(printf '%s' \"$CID:$SEC\" | base64 -w0)\necho \"--- token (both scopes)\"\nRESP=$(curl -sS -i -X POST \"http://localstack:4566/_aws/cognito-idp/oauth2/token\" -H \"Authorization: Basic $BASIC\" -d \"grant_type=client_credentials&scope=harbor-api/read harbor-api/write\")\necho \"$RESP\" | head -20\nTOKEN=$(echo \"$RESP\" | tail -n1 | python3 -c 'import sys,json; print(json.loads(sys.stdin.read())[\"access_token\"])')\necho \"--- token len/segments\"\necho -n \"$TOKEN\" | wc -c\necho \"$TOKEN\" | awk -F. '{print NF}'\necho \"--- decoded payload\"\nPAY=$(echo -n \"$TOKEN\" | cut -d. -f2)\nPAD=$(printf '%s' \"$PAY\" | awk '{l=length($0); m=l%4; if(m){print substr(\"====\",1,4-m)}}')\necho \"${PAY}${PAD}\" | tr '_-' '/+' | base64 -d 2>/dev/null\necho\necho \"--- GET /reports with bearer\"\ncurl -sS -i \"http://localstack:4566/restapis/afb7ba6d/prod/_user_request_/reports\" -H \"Authorization: Bearer $TOKEN\" | head -20\necho\necho \"--- POST /reports with bearer\"\ncurl -sS -i -X POST \"http://localstack:4566/restapis/afb7ba6d/prod/_user_request_/reports\" -H \"Authorization: Bearer $TOKEN\" | head -20\necho\necho \"--- GET /reports no auth\"\ncurl -sS -i \"http://localstack:4566/restapis/afb7ba6d/prod/_user_request_/reports\" | head -5\necho\necho \"--- POST /reports malformed bearer\"\ncurl -sS -i -X POST \"http://localstack:4566/restapis/afb7ba6d/prod/_user_request_/reports\" -H \"Authorization: Bearer not-a-jwt\" | head -5",
  "description": "Drive E2E flow"
}

output

--- token (both scopes)
HTTP/1.1 200 OK
Server: TwistedWeb/25.5.0
Date: Sun, 17 May 2026 07:56:47 GMT
Content-Type: application/json
Content-Length: 1068
x-localstack: true

{"access_token": "eyJhbGciOiJSUzI1NiIsImtpZCI6IjI0MGUwMDU5LWJjMDQtNDhlMC04ODdhLWYxN2Y5NDg0ZDg2ZiIsInR5cCI6IkpXVCJ9.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.KmR3AK00-hiThpNsnct2OHe6AwIsmskT9ohtFnsNjSknTJNIlSFzEsF4Q9BJjeYFLvV3Y7Hp5SsAp1aXueFLz-_zooCWydzfQ2WheMbX4dI3KEYgApYoO2MS6uC8BBV938nyBCMuV-uZkLX8zP6Owzp7u69yaHNSJg4AQ5I4DwtsK6iIQrv5pOWpN7XtOTYnf7RQogXeS0BUnoC6Vyya6vdWFpg1p70lrBF5sWmprXqvoY-w1diJY6Atsx4lUzZpKlnn6O2KnAawKbvLY_jCtj_0egcno05ko7ueDCoskqCc2bsYzSrGmGsqWktimM9I3zWyAZ46yunafvV5xj50Eg", "expires_in": 3600, "token_type": "Bearer"}
--- token len/segments
1004
3
--- decoded payload
{"exp":1779008207,"iss":"http://localhost.localstack.cloud:4566/us-east-1_baf4649ce108415a9da18b07148fa01d","sub":"0fm9dlzw8xppptr0yp9d508qax","auth_time":1779004607,"iat":1779004607,"event_id":"f579961b-6ca2-4ddd-ab41-8eae71313496","token_use":"access","jti":"b0beb927-f316-474f-96af-963905718f0a","username":"0fm9dlzw8xppptr0yp9d508qax","client_id":"0fm9dlzw8xppptr0yp9d508qax","scope":"harbor-api/read harbor-api/write"}
--- GET /reports with bearer
HTTP/1.1 500 INTERNAL SERVER ERROR
Server: TwistedWeb/25.5.0
Date: Sun, 17 May 2026 07:56:47 GMT
Content-Type: application/json
Connection: keep-alive
Apigw-Requestid: 24b55915
Content-Length: 35
x-localstack: true

{"message":"Internal Server Error"}
--- POST /reports with bearer
HTTP/1.1 500 INTERNAL SERVER ERROR
Server: TwistedWeb/25.5.0
Date: Sun, 17 May 2026 07:57:00 GMT
Content-Type: application/json
Connection: keep-alive
Apigw-Requestid: 604f1e22
Content-Length: 35
x-localstack: true

{"message":"Internal Server Error"}
--- GET /reports no auth
HTTP/1.1 401 UNAUTHORIZED
Server: TwistedWeb/25.5.0
Date: Sun, 17 May 2026 07:57:09 GMT
Content-Type: application/json
Connection: keep-alive

--- POST /reports malformed bearer
HTTP/1.1 401 UNAUTHORIZED
Server: TwistedWeb/25.5.0
Date: Sun, 17 May 2026 07:57:09 GMT
Content-Type: application/json
Connection: keep-alive

[stdout]
--- token (both scopes)
HTTP/1.1 200 OK
Server: TwistedWeb/25.5.0
Date: Sun, 17 May 2026 07:56:47 GMT
Content-Type: application/json
Content-Length: 1068
x-localstack: true

{"access_token": "eyJhbGciOiJSUzI1NiIsImtpZCI6IjI0MGUwMDU5LWJjMDQtNDhlMC04ODdhLWYxN2Y5NDg0ZDg2ZiIsInR5cCI6IkpXVCJ9.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.KmR3AK00-hiThpNsnct2OHe6AwIsmskT9ohtFnsNjSknTJNIlSFzEsF4Q9BJjeYFLvV3Y7Hp5SsAp1aXueFLz-_zooCWydzfQ2WheMbX4dI3KEYgApYoO2MS6uC8BBV938nyBCMuV-uZkLX8zP6Owzp7u69yaHNSJg4AQ5I4DwtsK6iIQrv5pOWpN7XtOTYnf7RQogXeS0BUnoC6Vyya6vdWFpg1p70lrBF5sWmprXqvoY-w1diJY6Atsx4lUzZpKlnn6O2KnAawKbvLY_jCtj_0egcno05ko7ueDCoskqCc2bsYzSrGmGsqWktimM9I3zWyAZ46yunafvV5xj50Eg", "expires_in": 3600, "token_type": "Bearer"}
--- token len/segments
1004
3
--- decoded payload
{"exp":1779008207,"iss":"http:/
…[truncated]

Token endpoint works and the JWT carries all required claims. The bearer call returns 500 , that's Lambda invocation, not the authorizer (which is correctly rejecting unauth requests with 401). Let me look at logs.

Bash

{
  "command": "aws logs tail /aws/lambda/harbor-jwt-backend --region us-east-1 --since 5m 2>&1 | tail -50",
  "description": "Read lambda logs"
}

output

(Bash completed with no output)

Bash

{
  "command": "aws logs describe-log-streams --log-group-name /aws/lambda/harbor-jwt-backend --region us-east-1 --order-by LastEventTime --descending --max-items 3",
  "description": "List log streams"
}

output

{
    "logStreams": []
}

[stdout]
{
    "logStreams": []
}

Bash

{
  "command": "aws lambda invoke --function-name harbor-jwt-backend --region us-east-1 --payload '{\"requestContext\":{\"http\":{\"method\":\"GET\"}},\"routeKey\":\"GET /reports\"}' --cli-binary-format raw-in-base64-out /tmp/out.json; cat /tmp/out.json; echo",
  "description": "Direct lambda invoke"
}

output

aws: [ERROR]: An error occurred (TooManyRequestsException) when calling the Invoke operation (reached max retries: 2): Rate Exceeded.

Additional error details:
Type: User
Reason: ReservedFunctionConcurrentInvocationLimitExceeded
cat: /tmp/out.json: No such file or directory

[stdout]
aws: [ERROR]: An error occurred (TooManyRequestsException) when calling the Invoke operation (reached max retries: 2): Rate Exceeded.

Additional error details:
Type: User
Reason: ReservedFunctionConcurrentInvocationLimitExceeded
cat: /tmp/out.json: No such file or directory

Bash

{
  "command": "aws lambda get-function-concurrency --function-name harbor-jwt-backend --region us-east-1",
  "description": "Check function concurrency"
}

output

{
    "ReservedConcurrentExecutions": 0
}

[stdout]
{
    "ReservedConcurrentExecutions": 0
}

Another bug , `ReservedConcurrentExecutions=0` blocks all invocations.

Bash

{
  "command": "aws lambda delete-function-concurrency --function-name harbor-jwt-backend --region us-east-1 && echo cleared",
  "description": "Clear concurrency throttle"
}

output

cleared

[stdout]
cleared

Bash

{
  "command": "set -e\nCID=0fm9dlzw8xppptr0yp9d508qax\nSEC=d6c6a67a\nBASIC=$(printf '%s' \"$CID:$SEC\" | base64 -w0)\nTOKEN_BOTH=$(curl -sS -X POST \"http://localstack:4566/_aws/cognito-idp/oauth2/token\" -H \"Authorization: Basic $BASIC\" -d \"grant_type=client_credentials&scope=harbor-api/read harbor-api/write\" | python3 -c 'import sys,json;print(json.loads(sys.stdin.read())[\"access_token\"])')\nTOKEN_READ=$(curl -sS -X POST \"http://localstack:4566/_aws/cognito-idp/oauth2/token\" -H \"Authorization: Basic $BASIC\" -d \"grant_type=client_credentials&scope=harbor-api/read\" | python3 -c 'import sys,json;print(json.loads(sys.stdin.read())[\"access_token\"])')\nTOKEN_WRITE=$(curl -sS -X POST \"http://localstack:4566/_aws/cognito-idp/oauth2/token\" -H \"Authorization: Basic $BASIC\" -d \"grant_type=client_credentials&scope=harbor-api/write\" | python3 -c 'import sys,json;print(json.loads(sys.stdin.read())[\"access_token\"])')\nEP=\"http://localstack:4566/restapis/afb7ba6d/prod/_user_request_/reports\"\necho \"GET both:\";   curl -sS -o /tmp/g.json -w 'status=%{http_code}\\n' \"$EP\" -H \"Authorization: Bearer $TOKEN_BOTH\"; cat /tmp/g.json; echo\necho \"POST both:\";  curl -sS -o /tmp/p.json -w 'status=%{http_code}\\n' -X POST \"$EP\" -H \"Authorization: Bearer $TOKEN_BOTH\"; cat /tmp/p.json; echo\necho \"GET no auth:\";    curl -sS -o /dev/null -w 'status=%{http_code}\\n' \"$EP\"\necho \"POST malformed:\"; curl -sS -o /dev/null -w 'status=%{http_code}\\n' -X POST \"$EP\" -H \"Authorization: Bearer not-a-jwt\"\necho \"GET write-only:\";  curl -sS -o /dev/null -w 'status=%{http_code}\\n' \"$EP\" -H \"Authorization: Bearer $TOKEN_WRITE\"\necho \"POST read-only:\";  curl -sS -o /dev/null -w 'status=%{http_code}\\n' -X POST \"$EP\" -H \"Authorization: Bearer $TOKEN_READ\"",
  "description": "Full verifier flow"
}

output

GET both:
status=200
{"ok": true, "method": "GET", "route": "GET /reports", "client_id": "0fm9dlzw8xppptr0yp9d508qax", "scope": "harbor-api/read harbor-api/write", "scopes": ["harbor-api/read", "harbor-api/write"]}
POST both:
status=200
{"ok": true, "method": "POST", "route": "POST /reports", "client_id": "0fm9dlzw8xppptr0yp9d508qax", "scope": "harbor-api/read harbor-api/write", "scopes": ["harbor-api/read", "harbor-api/write"]}
GET no auth:
status=401
POST malformed:
status=401
GET write-only:
status=403
POST read-only:
status=403

[stdout]
GET both:
status=200
{"ok": true, "method": "GET", "route": "GET /reports", "client_id": "0fm9dlzw8xppptr0yp9d508qax", "scope": "harbor-api/read harbor-api/write", "scopes": ["harbor-api/read", "harbor-api/write"]}
POST both:
status=200
{"ok": true, "method": "POST", "route": "POST /reports", "client_id": "0fm9dlzw8xppptr0yp9d508qax", "scope": "harbor-api/read harbor-api/write", "scopes": ["harbor-api/read", "harbor-api/write"]}
GET no auth:
status=401
POST malformed:
status=401
GET write-only:
status=403
POST read-only:
status=403

All six checks pass: 200 on authorized GET/POST with both scopes, 401 on no-auth and malformed bearer, 403 on cross-scope access. Bugs fixed: 1. Lambda `Handler` was `handler.lambda_handler` (code defines `handler`) , set to `handler.handler`. 2. Lambda `ReservedConcurrentExecutions=0` throttled every invoke , cleared. 3. Integration `PayloadFormatVersion` was `1.0`; handler expects v2 (`requestContext.http`, `routeKey`) , set to `2.0`. 4. Authorizer `IdentitySource` was `$request.header.X-Auth-Token` , set to `$request.header.Authorization`. 5. Authorizer `Audience` was `harbor-api` , Cognito M2M tokens have no `aud`; the JWT authorizer matches `client_id`, so set audience to the app client id. 6. Routes had bare `read`/`write` scopes , JWT carries `harbor-api/read|write`, so updated route scopes to match. 7. App client was `implicit` flow, no secret, no allowed scopes , recreated with `client_credentials`, `--generate-secret`, allowed scopes `harbor-api/read|write`; updated authorizer audience and `/harbor/jwt/app-client-id`+`/app-client-secret` in SSM, deleted the old client. 8. Stage `AutoDeploy=false` , enabled and pushed a fresh deployment to make all the above take effect.

Final diff , what the agent changed

No file changes, the agent left the workspace untouched.

Verifier output , the proof behind the reward

tests/test.sh

downloading uv 0.9.7 aarch64-unknown-linux-gnu
Downloading pygments (1.2MiB)
Downloading botocore (12.7MiB)
 Downloading pygments
 Downloading botocore
Installed 13 packages in 31ms
============================= test session starts ==============================
platform linux -- Python 3.12.3, pytest-8.4.1, pluggy-1.6.0 -- /root/.cache/uv/archive-v0/WDVsUgpUTjaOrL4MVTvqe/bin/python
cachedir: .pytest_cache
rootdir: /tests
plugins: json-ctrf-0.3.5
collecting ... collected 60 items

../tests/test_outputs.py::test_01_token_endpoint_returns_access_token PASSED [  1%]
../tests/test_outputs.py::test_02_token_endpoint_rejects_bad_secret PASSED [  3%]
../tests/test_outputs.py::test_03_token_endpoint_no_token_when_grant_type_missing PASSED [  5%]
../tests/test_outputs.py::test_04_get_reports_with_valid_token_is_200 PASSED [  6%]
../tests/test_outputs.py::test_05_post_reports_with_valid_token_is_200 PASSED [  8%]
../tests/test_outputs.py::test_06_get_reports_returns_ok_true_in_body PASSED [ 10%]
../tests/test_outputs.py::test_07_post_reports_returns_ok_true_in_body PASSED [ 11%]
../tests/test_outputs.py::test_08_get_reports_without_authorization_is_401 PASSED [ 13%]
../tests/test_outputs.py::test_09_post_reports_without_authorization_is_401 PASSED [ 15%]
../tests/test_outputs.py::test_10_get_reports_with_malformed_bearer_is_401 PASSED [ 16%]
../tests/test_outputs.py::test_11_get_reports_with_wrong_scope_only_is_403 PASSED [ 18%]
../tests/test_outputs.py::test_12_post_reports_with_wrong_scope_only_is_403 PASSED [ 20%]
../tests/test_outputs.py::test_13_get_reports_body_reflects_method_and_route PASSED [ 21%]
../tests/test_outputs.py::test_14_post_reports_body_reflects_method_and_route PASSED [ 23%]
../tests/test_outputs.py::test_15_access_token_is_a_three_segment_jwt PASSED [ 25%]
../tests/test_outputs.py::test_16_token_payload_has_client_id_claim PASSED [ 26%]
../tests/test_outputs.py::test_17_token_payload_has_scope_claim_with_both_scopes PASSED [ 28%]
../tests/test_outputs.py::test_18_token_payload_issuer_matches_user_pool PASSED [ 30%]
../tests/test_outputs.py::test_19_token_payload_token_use_is_access PASSED [ 31%]
../tests/test_outputs.py::test_20_read_only_token_scope_excludes_write PASSED [ 33%]
../tests/test_outputs.py::test_21_write_only_token_scope_excludes_read PASSED [ 35%]
../tests/test_outputs.py::test_22_token_expiry_is_in_the_future PASSED   [ 36%]
../tests/test_outputs.py::test_23_http_api_protocol_type_is_http PASSED  [ 38%]
../tests/test_outputs.py::test_24_jwt_authorizer_type_is_jwt PASSED      [ 40%]
../tests/test_outputs.py::test_25_jwt_authorizer_audience_contains_app_client_id PASSED [ 41%]
../tests/test_outputs.py::test_26_jwt_authorizer_issuer_matches_user_pool PASSED [ 43%]
../tests/test_outputs.py::test_27_jwt_authorizer_identity_source_is_authorization_header PASSED [ 45%]
../tests/test_outputs.py::test_28_route_get_reports_authorization_type_is_jwt PASSED [ 46%]
../tests/test_outputs.py::test_29_route_post_reports_authorization_type_is_jwt PASSED [ 48%]
../tests/test_outputs.py::test_30_route_get_reports_scopes_are_namespaced_read PASSED [ 50%]
../tests/test_outputs.py::test_31_route_post_reports_scopes_are_namespaced_write PASSED [ 51%]
../tests/test_outputs.py::test_32_route_get_reports_uses_the_authorizer PASSED [ 53%]
../tests/test_outputs.py::test_33_route_post_reports_uses_the_authorizer PASSED [ 55%]
../tests/test_outputs.py::test_34_lambda_integration_payload_format_is_two_dot_zero PASSED [ 56%]
../tests/test_outputs.py::test_35_lambda_integration_type_is_aws_proxy PASSED [ 58%]
../tests/test_outputs.py::test_36_lambda_integration_uri_targets_backend_function PASSED [ 60%]
../tests/test_outputs.py::test_37_stage_auto_deploy_is_true PASSED       [ 61%]
../tests/test_outputs.py::test_38_stage_has_a_deployment PASSED          [ 63%]
../tests/test_outputs.py::test_39_stage_name_is_prod PASSED              [ 65%]
../tests/test_outputs.py::test_40_user_pool_exists_with_expected_name PASSED [ 66%]
../tests/test_outputs.py::test_41_resource_server_exists_with_two_scopes PASSED [ 68%]
../tests/test_outputs.py::test_42_app_client_allowed_oauth_flow_is_client_credentials PASSED [ 70%]
../tests/test_outputs.py::test_43_app_client_oauth_flows_user_pool_client_is_true PASSED [ 71%]
../tests/test_outputs.py::test_44_app_client_has_a_client_secret PASSED  [ 73%]
../tests/test_outputs.py::test_45_app_client_allowed_oauth_scopes_includes_both_namespaced PASSED [ 75%]
../tests/test_outputs.py::test_46_app_client_supports_cognito_identity_provider PASSED [ 76%]
../tests/test_outputs.py::test_47_app_client_does_not_use_implicit_flow_alone PASSED [ 78%]
../tests/test_outputs.py::test_48_backend_lambda_exists_and_active PASSED [ 80%]
../tests/test_outputs.py::test_49_backend_lambda_runtime_is_python3 PASSED [ 81%]
../tests/test_outputs.py::test_50_backend_lambda_role_can_write_logs FAILED [ 83%]
../tests/test_outputs.py::test_51_apigateway_can_invoke_backend_lambda PASSED [ 85%]
../tests/test_outputs.py::test_52_log_group_exists PASSED                [ 86%]
../tests/test_outputs.py::test_53_ssm_manifest_keys_present PASSED       [ 88%]
../tests/test_outputs.py::test_54_ssm_api_id_resolves_to_real_api PASSED [ 90%]
../tests/test_outputs.py::test_55_ssm_user_pool_id_resolves_to_real_pool PASSED [ 91%]
../tests/test_outputs.py::test_56_ssm_authorizer_id_resolves_to_real_authorizer PASSED [ 93%]
../tests/test_outputs.py::test_57_ssm_oauth_token_endpoint_is_well_formed PASSED [ 95%]
../tests/test_outputs.py::test_58_backend_lambda_reserved_concurrency_does_not_block_invocations PASSED [ 96%]
../tests/test_outputs.py::test_59_backend_lambda_direct_invoke_returns_a_successful_response PASSED [ 98%]
../tests/test_outputs.py::test_60_backend_lambda_role_grants_log_stream_writes FAILED [100%]

=================================== FAILURES ===================================
__________________ test_50_backend_lambda_role_can_write_logs __________________

    def test_50_backend_lambda_role_can_write_logs():
        role_name = LAMBDA_ROLE_ARN().split("/")[-1]
        iam = _client("iam")
        attached = iam.list_attached_role_policies(RoleName=role_name).get("AttachedPolicies", [])
        has_managed = any("AWSLambdaBasicExecutionRole" in (a.get("PolicyArn") or "") for a in attached)
        if has_managed:
            return
        inline = iam.list_role_policies(RoleName=role_name).get("PolicyNames", [])
        ok = False
        for pn in inline:
            doc = iam.get_role_policy(RoleName=role_name, PolicyName=pn).get("PolicyDocument") or {}
            for s in _stmts(doc):
                if s.get("Effect") == "Allow" and (_action_matches(s.get("Action"), "logs:PutLogEvents") or _action_matches(s.get("Action"), "logs:CreateLogStream")):
                    ok = True
>       assert ok, f"backend lambda role {role_name} has no logs write capability"
E       AssertionError: backend lambda role harbor-jwt-backend-role has no logs write capability
E       assert False

/tests/test_outputs.py:638: AssertionError
_____________ test_60_backend_lambda_role_grants_log_stream_writes _____________

    def test_60_backend_lambda_role_grants_log_stream_writes():
        role_name = LAMBDA_ROLE_ARN().split("/")[-1]
        iam = _client("iam")
        attached = iam.list_attached_role_policies(RoleName=role_name).get("AttachedPolicies", [])
        has_managed = any("AWSLambdaBasicExecutionRole" in (a.get("PolicyArn") or "") for a in attached)
        has_stream, has_put = False, False
        if not has_managed:
            for pn in iam.list_role_policies(RoleName=role_name).get("PolicyNames", []):
                doc = iam.get_role_policy(RoleName=role_name, PolicyName=pn).get("PolicyDocument") or {}
                for s in _stmts(doc):
                    if s.get("Effect") != "Allow":
                        continue
                    if _action_matches(s.get("Action"), "logs:CreateLogStream"):
                        has_stream = True
                    if _action_matches(s.get("Action"), "logs:PutLogEvents"):
                        has_put = True
>       assert has_managed or (has_stream and has_put), (
            f"backend lambda role {role_name} can not write log streams or events - "
            f"the basic-execution managed policy is not attached and the inline policies do not grant both "
            f"logs:CreateLogStream and logs:PutLogEvents"
        )
E       AssertionError: backend lambda role harbor-jwt-backend-role can not write log streams or events - the basic-execution managed policy is not attached and the inline policies do not grant both logs:CreateLogStream and logs:PutLogEvents
E       assert (False or (False))

/tests/test_outputs.py:746: AssertionError
=============================== warnings summary ===============================
test_outputs.py: 123 warnings
  /root/.cache/uv/archive-v0/WDVsUgpUTjaOrL4MVTvqe/lib/python3.12/site-packages/botocore/auth.py:424: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
    datetime_now = datetime.datetime.utcnow()

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
==================================== PASSES ====================================
=========================== short test summary info ============================
PASSED ../tests/test_outputs.py::test_01_token_endpoint_returns_access_token
PASSED ../tests/test_outputs.py::test_02_token_endpoint_rejects_bad_secret
PASSED ../tests/test_outputs.py::test_03_token_endpoint_no_token_when_grant_type_missing
PASSED ../tests/test_outputs.py::test_04_get_reports_with_valid_token_is_200
PASSED ../tests/test_outputs.py::test_05_post_reports_with_valid_token_is_200
PASSED ../tests/test_outputs.py::test_06_get_reports_returns_ok_true_in_body
PASSED ../tests/test_outputs.py::test_07_post_reports_returns_ok_true_in_body
PASSED ../tests/test_outputs.py::test_08_get_reports_without_authorization_is_401
PASSED ../tests/test_outputs.py::test_09_post_reports_without_authorization_is_401
PASSED ../tests/test_outputs.py::test_10_get_reports_with_malformed_bearer_is_401
PASSED ../tests/test_outputs.py::test_11_get_reports_with_wrong_scope_only_is_403
PASSED ../tests/test_outputs.py::test_12_post_reports_with_wrong_scope_only_is_403
PASSED ../tests/test_outputs.py::test_13_get_reports_body_reflects_method_and_route
PASSED ../tests/test_outputs.py::test_14_post_reports_body_reflects_method_and_route
PASSED ../tests/test_outputs.py::test_15_access_token_is_a_three_segment_jwt
PASSED ../tests/test_outputs.py::test_16_token_payload_has_client_id_claim
PASSED ../tests/test_outputs.py::test_17_token_payload_has_scope_claim_with_both_scopes
PASSED ../tests/test_outputs.py::test_18_token_payload_issuer_matches_user_pool
PASSED ../tests/test_outputs.py::test_19_token_payload_token_use_is_access
PASSED ../tests/test_outputs.py::test_20_read_only_token_scope_excludes_write
PASSED ../tests/test_outputs.py::test_21_write_only_token_scope_excludes_read
PASSED ../tests/test_outputs.py::test_22_token_expiry_is_in_the_future
PASSED ../tests/test_outputs.py::test_23_http_api_protocol_type_is_http
PASSED ../tests/test_outputs.py::test_24_jwt_authorizer_type_is_jwt
PASSED ../tests/test_outputs.py::test_25_jwt_authorizer_audience_contains_app_client_id
PASSED ../tests/test_outputs.py::test_26_jwt_authorizer_issuer_matches_user_pool
PASSED ../tests/test_outputs.py::test_27_jwt_authorizer_identity_source_is_authorization_header
PASSED ../tests/test_outputs.py::test_28_route_get_reports_authorization_type_is_jwt
PASSED ../tests/test_outputs.py::test_29_route_post_reports_authorization_type_is_jwt
PASSED ../tests/test_outputs.py::test_30_route_get_reports_scopes_are_namespaced_read
PASSED ../tests/test_outputs.py::test_31_route_post_reports_scopes_are_namespaced_write
PASSED ../tests/test_outputs.py::test_32_route_get_

… (truncated at 12,000 chars, full verifier log is in the trial artifacts)

Reproduce this trial: git checkout 2f94510 && PYTHONPATH=src python3 scripts/build_site.py , then open trial/trial_53b5cf09ac784a61. Re-running the agent live requires EVAL_PLATFORM_ENABLE_OAUTH_SMOKE=1 and is non-deterministic.

Trial trial_53b5cf09ac784a61 · verifier authoritative; classifier explanatory.