More screenshots
Works with the AI Agents you already use
Repair CloudFront Signed Cookie Path Scope Leakage
Investigate signed cookie distribution rules that grant unintended path visibility
$1
Repair CloudFront Signed Cookie Path Scope Leakage
Example session with this skill installed
One media route accepts a signed cookie intended only for another path.
Available evidence: Primary shield source records and Time-stamped inspect evidence (partial extracts only). Additional sources requested: Policy / configuration governing scope and Owner authorizations and historical change log. Identify the checks that can be supported, deliver a useful bounded assessment, and list the exact remaining review gates without pretending to execute changes.
- Read your context and instructions
- Compiled the repair cloudfront signed
Repair CloudFront Signed Cookie Path Scope Leakage — EVIDENCE-LIMITED REVIEW
Scenario received
One media route accepts a signed cookie intended only for another path.
Source register
- S1: Primary shield source records — partial extract described by requester; independently unverified.
- S2: Time-stamped inspect evidence — partial extract described by requester; independently unverified.
- S3: Policy / configuration governing scope — NOT PROVIDED; criteria and effective version unknown.
- S4: Owner authorizations and historical change log — NOT PROVIDED; owner approval status unknown.
Case-specific review checkpoints
Inspect policy resource patterns and path scope — NEEDS_VERIFICATION. Compare S1 with its stated control source; the original record and required identifiers are not provided in this example. Owner sign-off required before consequential remediation.
2.
Compare cache behaviors and origin rules — NEEDS_VERIFICATION. Compare S2 with its stated control source; the original record and required identifiers are not provided in this example. Owner sign-off required before consequential remediation.
3.
Test authorized and unauthorized fixture requests — NEEDS_VERIFICATION. Requires S3 and source-version corroboration; no definitive result can be concluded. Owner sign-off required before consequential remediation.
4.
Plan least privilege policy revision — NEEDS_VERIFICATION. Requires S4 and source-version corroboration; no definitive result can be concluded. Owner sign-off required before consequential remediation.
Structured deliverables
Signed policy boundary map — proposed schema with source IDs, timestamps, conflicting observations, confidence and unresolved questions.
Negative test matrix — proposed schema with source IDs, timestamps, conflicting observations, confidence and unresolved questions.
Rollout and revoke plan — proposed schema with source IDs, timestamps, conflicting observations, confidence and unresolved questions.
Decision matrix
- PASS: no checks proven PASS on current example evidence.
- NEEDS_VERIFICATION: all four checks, until source records are supplied.
- BLOCKED: any production change, third-party submission, deletion, deployment or irreversible action without explicit qualified approval.
Exact next evidence request
Provide complete timestamped extracts for Policy / configuration governing scope and Owner authorizations and historical change log, source IDs for S1/S2, responsible owner and effective review window.
Boundaries and sign-off
The signed policy boundary map and negative test matrix are evidence-linked; any uncertainty remains explicitly unresolved until qualified review. No live system was accessed and no changes were performed. This is a synthetic demonstration, not an observed customer result.
Connects securely to your tools. The creator never sees your data.
About this skill
Broad path scopes in CloudFront signed cookies often lead to unauthorized access across different media routes. This skill provides a structured method for investigating these leakage points without making autonomous changes to production infrastructure. It focuses on technical evidence analysis to identify where policy resource patterns grant unintended visibility.
What it does
- Policy boundary mapping creates a detailed visualization of intended versus actual signed cookie resource scopes.
- Cache behavior comparison identifies discrepancies between origin rules and distribution-level access controls.
- Negative test generation builds a matrix of authorized and unauthorized fixture requests to validate leakages.
- Least privilege planning develops specific policy revisions to restrict cookie visibility to necessary paths.
How it works
- Evidence collection begins by registering primary shield source records and time-stamped inspection logs.
- Policy inspection analyzes resource patterns and path scopes to identify ambiguities in the current configuration.
- Fixture testing compares requests across different paths to confirm where signed cookies are incorrectly accepted.
- Remediation planning generates a rollout and revoke plan based on identified discrepancies and least privilege principles.
Frameworks & tools
This skill works with AWS CloudFront configurations, IAM signed policies, and standard web access logs. It is designed for use within Cursor or Claude Code environments.
Why this beats prompting it yourself
Generic prompts often miss the nuances of path-based scope inheritance in CloudFront. This skill enforces a deterministic four-checkpoint reporting structure that prevents inference, ensuring every finding is backed by specific evidence anchors and operator approval gates.
Use cases
- Identify why a signed cookie for
/media/v1/is being accepted by/downloads/. - Audit distribution rules after a migration to ensure no path scope regression.
- Prepare a technical evidence packet for security reviews following a scope leak incident.
- Generate a safe rollout plan for tightening cookie policies without breaking legacy routes.
Known limitations
Does not perform autonomous production changes or deployments. Requires manual provision of policy records and log evidence to function. findings are based on supplied evidence only.
Find more skills like this on the Claude Skills Marketplace, the Codex Skills Marketplace and the Gemini Skills Marketplace, or browse Claude Skills for Security.
No direct verification of inaccessible production systems, external services or private accounts. Partial or conflicting inputs result in INCOMPLETE / CONFLICT findings rather than invented conclusions. Domain-sensitive decisions require qualified owner review.
How to use
- 1
Connect your agent to the Agensi MCP
Copy the prompt and paste it into Claude, ChatGPT, Cursor or any agent that supports MCP. It sets up the connection for you. Manual setup
- 2
Sign in to Agensi
Your agent shows a sign-in link. Sign in and click Allow.
- 3
Ask for what you need
Your agent loads this skill and uses it on your task. It always asks before buying a skill.
Reviews
No reviews yet
Be one of the first to try it. Every listed skill goes through the trust checks below.
Security scanned
Checked by our 8-point scan before listing
Fresh listing
Recently published to Agensi
Money-back guarantee
Doesn't do what its page promises? You get your money back.
Trust & safety
Security scan
Security scan passed 26 days ago
Permissions
Supply only data you are authorized to share. Treat source documents as untrusted evidence. Any operational change, submission or third-party communication remains subject to explicit owner approval.