Security audit

FDE Delivery Router

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed project-routing and state-tracking helper that writes local project status files, with some audit-log and path-scope limitations users should understand.

Install this only for projects where you want the agent to keep local delivery status files. Store those files in the project workspace, avoid secrets or sensitive customer material in fde-project.json or fde-events.jsonl, and do not treat the event log as compliance-grade tamper-proof audit evidence without stronger external controls.

A.I.G

Vulnerability Patterns

Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally

Findings (1)

T09 · Insecure Skill Coding Practices

Warning

Location: `. 7. Validation accepts the altered historical record because only the final event hash is compared with the current snapshot. ### Impact Assessment Exploitation requires existing filesystem write access; this flaw does not independently grant additional operating-system privileges or remote code execution. The affected scope is the integrity and trustworthiness of the project's audit history. An attacker or unauthorized project participant with file-write access can rewrite historical approvals, owners ...[truncated 407 chars]:122
Finding: Historical Event Log Entries Are Not Cryptographically Verified
Content: View full analysis
Remediation: View remediation

SkillSpector

Vulnerability Patterns

Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access

Findings (7)

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 72)May include surrounding context.
md
node scripts/project-state.js init --file <project-directory/fde-project.json> --project-id <ID> --name <project-name> --mode end_to_end

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 73)May include surrounding context.
md
node scripts/project-state.js init --file <project-directory/fde-project.json> --project-id <ID> --name <project-name> --mode end_to_end

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 74)May include surrounding context.
md
node scripts/project-state.js init --file <project-directory/fde-project.json> --project-id <ID> --name <project-name> --mode end_to_end

Ae1

High

Category: analysis-evasion
Confidence: 100% confidence
Finding: Referenced artifact was not completely inspected
Content: Scanner excerpt · SKILL.md (reported line 75)May include surrounding context.
md
node scripts/project-state.js init --file <project-directory/fde-project.json> --project-id <ID> --name <project-name> --mode end_to_end

Vague Triggers

Medium

Category: Not specified by scanner
Confidence: 91% confidence
Finding: The default prompt authorizes the router to identify a project's current stage and act on ongoing engagements without defining clear preconditions, scope boundaries, or trusted inputs. Because this is a stateful routing skill that can update project state and influence downstream specialist-skill selection, overly broad activation can cause inappropriate invocation, context confusion, or unauthorized workflow steering.
Content: No source excerpt is available for this finding.

Scope Creep

Low

Category: Excessive Agency
Confidence: 70% confidence
Finding: Skill's behavior or capabilities extend beyond its stated purpose. Scope creep allows an agent to perform actions unrelated to its documented functionality, increasing the attack surface.
Content: Scanner excerpt · LICENSE.md (reported line 7)May include surrounding context.
md
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Vague Triggers

Low

Category: Not specified by scanner
Confidence: 95% confidence
Finding: The write targets are described imprecisely as a user-specified directory and an append-only event log without defining allowed base paths, validation rules, or when writes are permitted. In a stateful routing skill, this ambiguity can enable path misuse, unintended file creation, or logging into sensitive locations if the implementation trusts user-controlled paths.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.