Generated banner for Iam Helper For Policy Management
Generated logo for Iam Helper For Policy Management

Iam Helper For Policy Management

GoogleOfficialPublished by Google

  • Skill
  • Tool integration
  • Security
  • Apache-2.0
  • No issues found

From the author

Streamlines the creation, modification, and management of IAM allow policies (v1) and deny policies (v2). Manages access control across Resource Manager resources (Organization, Folder, Project) and individual resources. Use when creating, updating, listing, or deleting IAM allow policies or deny policies. Don't use for access denial troubleshooting (use iam-helper-for-troubleshooting), temporary privileged access (use iam-helper-for-privileged-access-management), configuring VPC Service Controls, or managing network firewall rules.
— the description by Google

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

This skill provides a standardized workflow for managing Google Cloud IAM v1 allow policies and v2 deny policies. It enforces a strict Plan & Confirm protocol for all mutating operations to prevent accidental security misconfigurations. The skill handles the lifecycle of policies across the Resource Manager hierarchy, including organizations, folders, and projects, while ensuring all commands are properly attributed for auditability.

What it does

  • Lists and inspects existing IAM allow and deny policies.
  • Generates gcloud commands for adding, updating, or removing policy bindings.
  • Enforces a mandatory confirmation step before executing any policy changes.
  • Verifies the state of policies post-execution to ensure accuracy.
  • Applies required usage attribution tags to all CLI and API interactions.
  • Prevents the assignment of dangerous blanket roles like allUsers or allAuthenticatedUsers.

When to use it

  • When you need to grant or revoke access for users, service accounts, or groups.
  • When creating organization-level guardrails using IAM v2 deny policies.
  • When auditing current IAM policy configurations across your resource hierarchy.
  • When you need to perform bulk updates to IAM policies via JSON or YAML files.

Advantages

  • Reduces risk of accidental access changes through mandatory confirmation.
  • Ensures consistent and auditable command execution with automated attribution.
  • Promotes least-privilege security by blocking blanket public access requests.
  • Simplifies complex policy management across different resource levels.

Usage examples

“List all IAM allow policies for project my-project-123.”
The agent executes the appropriate gcloud command with attribution and displays the current policy configuration.
“Add user [email removed] as a viewer to project my-project-123.”
The agent generates the command, warns about the impact, and waits for your explicit approval before applying the change.

Install

  1. Download the skill as a ZIP:

    https://autogineer.com/agent-skills/google/iam-helper-for-policy-management/download
  2. Unzip it into the cross-client skills folder of your project:

    mkdir -p .agents/skills && unzip iam-helper-for-policy-management.zip -d .agents/skills

Documentation by Google

IAM Helper for Policy Management

Orchestrates the lifecycle and management of IAM allow and deny policies across IAM v1 (allow policies) and IAM v2 (deny policies).

Usage Attribution

MUST READ: Before executing any gcloud, REST API, or MCP command, you MUST read and follow the instructions in Usage Attribution.


Core Concepts & Paradigms

IAM operates across two policy paradigms:

  1. IAM v1 (Allow Policies): Grants roles to principals (users, service accounts, groups, domains) on specific resources. Supports Resource Manager resources (organizations, folders, projects) as well as individual resources across supported Google Cloud services.

  2. IAM v2 (Deny Policies): Sets explicit organization-, folder-, or project-level guardrails that prevent specified principals from using designated permissions, regardless of any allow policies granted. Evaluated before allow policies.


Workflow & Decision Tree

When receiving a policy management request, determine whether the operation is Read-Only or Mutating, and whether it targets IAM v1 (Allow Policies) or IAM v2 (Deny Policies):

1. Read-Only Operations (Autonomous Execution)

Read-only actions include the following:

  • IAM v1 Allow Policies: get-iam-policy on project/folder/organization, or gcloud iam list-testable-permissions //cloudresourcemanager.googleapis.com/projects/PROJECT_ID.

  • IAM v2 Deny Policies: gcloud iam policies list or gcloud iam policies get with --attachment-point and --kind=denypolicies.

For read-only actions, execute the command autonomously to inspect state, and present the query results clearly to the user.

2. Mutating Operations (Plan & Confirm Protocol)

Mutating operations include the following:

  • IAM v1 Allow Policies: add-iam-policy-binding, remove-iam-policy-binding, or set-iam-policy across project, folder, organization, or resource levels (see references/v1-allow-policies.md).

  • IAM v2 Deny Policies: create, update, or delete deny policies on attachment points (cloudresourcemanager.googleapis.com/projects/PROJECT_ID, cloudresourcemanager.googleapis.com/folders/FOLDER_ID, or cloudresourcemanager.googleapis.com/organizations/ORG_ID) using YAML/JSON policy files (see references/v2-deny-policies.md).

For mutating operations, follow the Plan & Confirm Protocol below. DO NOT execute mutating commands autonomously without prior user approval.


Execution & Safety Protocol

  • Plan and Confirm (No Autonomous Mutation): Mutating allow and deny policy changes modify live security perimeters and access controls. You MUST NOT execute mutating gcloud commands directly via tool calls without explicit prior confirmation from the user. When asked to apply a mutating change, do the following:

    1. Formulate the Command: Generate the exact, fully constructed gcloud command (including all parameters such as --member, --role, --attachment-point, --kind=denypolicies, and --policy-file).

    2. Warn of Impact & Propagation: Issue a general warning that the change could impact access in a live environment and takes time to propagate across Google Cloud global infrastructure.

    3. Request User Confirmation: Prompt the user for approval before applying the changes to the live environment.

  • Post-Execution Verification: After the user approves and the mutating policy change is executed, run the corresponding verification command (see references/v1-allow-policies.md and references/v2-deny-policies.md for exact verification steps) to verify that the active state matches expectations before reporting completion.

  • Security Guardrail (Public & Blanket Access Refusal): Never grant allUsers or allAuthenticatedUsers basic roles (roles/owner, roles/editor, roles/viewer, roles/admin, roles/writer, and roles/reader) or broad permissions. Explicitly refuse blanket public access requests, explain the severe security risks of public project ownership/access, and propose scoped, least-privileged role bindings for specific authenticated identities instead.


Files

LICENSE


                                 Apache License
                           Version 2.0, January 2004
                        http://www.apache.org/licenses/

   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

   1. Definitions.

      "License" shall mean the terms and conditions for use, reproduction,
      and distribution as defined by Sections 1 through 9 of this document.

      "Licensor" shall mean the copyright owner or entity authorized by
      the copyright owner that is granting the License.

      "Legal Entity" shall mean the union of the acting entity and all
      other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.

      "You" (or "Your") shall mean an individual or Legal Entity
      exercising permissions granted by this License.

      "Source" form shall mean the preferred form for making modifications,
      including but not limited to software source code, documentation
      source, and configuration files.

      "Object" form shall mean any form resulting from mechanical
      transformation or translation of a Source form, including but
      not limited to compiled object code, generated documentation,
      and conversions to other media types.

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a
      copyright notice that is included in or attached to the work
      (an example is provided in the Appendix below).

      "Derivative Works" shall mean any work, whether in Source or Object
      form, that is based on (or derived from) the Work and for which the
      editorial revisions, annotations, elaborations, or other modifications
      represent, as a whole, an original work of authorship. For the purposes
      of this License, Derivative Works shall not include works that remain
      separable from, or merely link (or bind by name) to the interfaces of,
      the Work and Derivative Works thereof.

      "Contribution" shall mean any work of authorship, including
      the original version of the Work and any modifications or additions
      to that Work or Derivative Works thereof, that is intentionally
      submitted to Licensor for inclusion in the Work by the copyright owner
      or by an individual or Legal Entity authorized to submit on behalf of
      the copyright owner. For the purposes of this definition, "submitted"
      means any form of electronic, verbal, or written communication sent
      to the Licensor or its representatives, including but not limited to
      communication on electronic mailing lists, source code control systems,
      and issue tracking systems that are managed by, or on behalf of, the
      Licensor for the purpose of discussing and improving the Work, but
      excluding communication that is conspicuously marked or otherwise
      designated in writing by the copyright owner as "Not a Contribution."

      "Contributor" shall mean Licensor and any individual or Legal Entity
      on behalf of whom a Contribution has been received by Licensor and
      subsequently incorporated within the Work.

   2. Grant of Copyright License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      copyright license to reproduce, prepare Derivative Works of,
      publicly display, publicly perform, sublicense, and distribute the
      Work and such Derivative Works in Source or Object form.

   3. Grant of Patent License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      (except as stated in this section) patent license to make, have made,
      use, offer to sell, sell, import, and otherwise transfer the Work,
      where such license applies only to those patent claims licensable
      by such Contributor that are necessarily infringed by their
      Contribution(s) alone or by combination of their Contribution(s)
      with the Work to which such Contribution(s) was submitted. If You
      institute patent litigation against any entity (including a
      cross-claim or counterclaim in a lawsuit) alleging that the Work
      or a Contribution incorporated within the Work constitutes direct
      or contributory patent infringement, then any patent licenses
      granted to You under this License for that Work shall terminate
      as of the date such litigation is filed.

   4. Redistribution. You may reproduce and distribute copies of the
      Work or Derivative Works thereof in any medium, with or without
      modifications, and in Source or Object form, provided that You
      meet the following conditions:

      (a) You must give any other recipients of the Work or
          Derivative Works a copy of this License; and

      (b) You must cause any modified files to carry prominent notices
          stating that You changed the files; and

      (c) You must retain, in the Source form of any Derivative Works
          that You distribute, all copyright, patent, trademark, and
          attribution notices from the Source form of the Work,
          excluding those notices that do not pertain to any part of
          the Derivative Works; and

      (d) If the Work includes a "NOTICE" text file as part of its
          distribution, then any Derivative Works that You distribute must
          include a readable copy of the attribution notices contained
          within such NOTICE file, excluding those notices that do not
          pertain to any part of the Derivative Works, in at least one
          of the following places: within a NOTICE text file distributed
          as part of the Derivative Works; within the Source form or
          documentation, if provided along with the Derivative Works; or,
          within a display generated by the Derivative Works, if and
          wherever such third-party notices normally appear. The contents
          of the NOTICE file are for informational purposes only and
          do not modify the License. You may add Your own attribution
          notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions
      for use, reproduction, or distribution of Your modifications, or
      for any such Derivative Works as a whole, provided Your use,
      reproduction, and distribution of the Work otherwise complies with
      the conditions stated in this License.

   5. Submission of Contributions. Unless You explicitly state otherwise,
      any Contribution intentionally submitted for inclusion in the Work
      by You to the Licensor shall be under the terms and conditions of
      this License, without any additional terms or conditions.
      Notwithstanding the above, nothing herein shall supersede or modify
      the terms of any separate license agreement you may have executed
      with Licensor regarding such Contributions.

   6. Trademarks. This License does not grant permission to use the trade
      names, trademarks, service marks, or product names of the Licensor,
      except as required for reasonable and customary use in describing the
      origin of the Work and reproducing the content of the NOTICE file.

   7. Disclaimer of Warranty. Unless required by applicable law or
      agreed to in writing, Licensor provides the Work (and each
      Contributor provides its Contributions) on an "AS IS" BASIS,
      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
      implied, including, without limitation, any warranties or conditions
      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
      PARTICULAR PURPOSE. You are solely responsible for determining the
      appropriateness of using or redistributing the Work and assume any
      risks associated with Your exercise of permissions under this License.

   8. Limitation of Liability. In no event and under no legal theory,
      whether in tort (including negligence), contract, or otherwise,
      unless required by applicable law (such as deliberate and grossly
      negligent acts) or agreed to in writing, shall any Contributor be
      liable to You for damages, including any direct, indirect, special,
      incidental, or consequential damages of any character arising as a
      result of this License or out of the use or inability to use the
      Work (including but not limited to damages for loss of goodwill,
      work stoppage, computer failure or malfunction, or any and all
      other commercial damages or losses), even if such Contributor
      has been advised of the possibility of such damages.

   9. Accepting Warranty or Additional Liability. While redistributing
      the Work or Derivative Works thereof, You may choose to offer,
      and charge a fee for, acceptance of support, warranty, indemnity,
      or other liability obligations and/or rights consistent with this
      License. However, in accepting such obligations, You may act only
      on Your own behalf and on Your sole responsibility, not on behalf
      of any other Contributor, and only if You agree to indemnify,
      defend, and hold each Contributor harmless for any liability
      incurred by, or claims asserted against, such Contributor by reason
      of your accepting any such warranty or additional liability.

   END OF TERMS AND CONDITIONS

   APPENDIX: How to apply the Apache License to your work.

      To apply the Apache License to your work, attach the following
      boilerplate notice, with the fields enclosed by brackets "[]"
      replaced with your own identifying information. (Don't include
      the brackets!)  The text should be enclosed in the appropriate
      comment syntax for the file format. We also recommend that a
      file or class name and description of purpose be included on the
      same "printed page" as the copyright notice for easier
      identification within third-party archives.

   Copyright [yyyy] [name of copyright owner]

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

Requirements and compatibility

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Security

No issues found by our static scan· No issues found

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

Attribution and licence

Published by
Google
Publisher
Google (Official)
Source
google/skills · skills/cloud/iam-helper-for-policy-management · commit 2194d3b
Licence
Apache License 2.0 (redistribution allowed)
  • LICENSE (added by AutoGineer from LICENSE)
  • ATTRIBUTION.md (written by AutoGineer)
Synced

AutoGineer is not affiliated with or endorsed by Google or Google.

Download ZIP

The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download iam-helper-for-policy-management.zip