--- title: "Terraform ephemeral resources: review, setup & limitations · Undominated.ai" canonical: https://undominated.ai/skills/hashicorp-provider-ephemeral-resources/ description: "Implement short-lived values with Open, optional Renew/Close, private lease handles and explicit non-persistence boundaries." --- # Terraform ephemeral resources: review, setup & limitations · Undominated.ai > Implement short-lived values with Open, optional Renew/Close, private lease handles and explicit non-persistence boundaries. [← Explore all skills](/skills/) INFRASTRUCTURE DEVELOPMENT / HashiCorp # Terraform ephemeral resources Implement short-lived values with Open, optional Renew/Close, private lease handles and explicit non-persistence boundaries. [See setup guidance ↓](#setup)[Original source ↗](https://github.com/hashicorp/agent-skills/tree/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/provider-ephemeral-resources) SOURCE REVIEW Reviewed 2026-10-15 Evidence 4 linked sources Publisher HashiCorp Licence [MPL-2.0 ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/LICENSE) Revision f706481af9b8 [Read what was—and wasn’t—checked ↓](#review) “Implement Terraform provider ephemeral resources with the Plugin Framework: the Open/Renew/Close lifecycle, ephemeral schema design, registration via EphemeralResources, renewal for expiring credentials, and how ephemeral values flow into write-only attributes and provider configuration. Use when adding an ephemeral resource, exposing secrets/tokens/certificates that must never persist in state or plan, deciding between an ephemeral resource and a data source, or wiring short-lived credentials from one provider into another.” [HashiCorp · upstream description ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/provider-ephemeral-resources/SKILL.md) Our analysis follows below. 01 / THE REASONING ## Why this made the selection. - It implements Terraform 1.10 ephemeral resources whose values are never written to state or plan. - Renew can only extend the value Open produced, and the secret must not appear in a log or diagnostic. - Distinguishes ephemeral use from ordinary data sources and persistent managed attributes. - Explains renewal limitations and tests that observe ephemeral values indirectly. ### A good fit for - Exposing a short-lived token that must not persist in Terraform state - Choosing an ephemeral resource instead of a data source for an apply-time secret - Expose an expiring credential for provider configuration. - Add lease renewal and revocation to a provider without placing the value in ordinary state. - Set a renewal margin that accounts for lazy ephemeral-credential renewal. ### Weigh up before choosing - Ephemeral values cannot be stored in regular resource attributes. - If the upstream secret cannot be revoked, Close should be omitted rather than pretending revocation happens. - Acceptance tests need an echo provider because the ephemeral result itself never reaches state. - This review did not execute the resource. - Requires Terraform 1.10+ and an API whose lease behavior matches the implemented lifecycle. - Renew cannot return a changed result; secrets can still leak through diagnostics or downstream persistence. 02 / THE REVIEW RECORD ## What we actually inspected. Source review has boundaries. A clear record is more useful than a “safe” badge. ### Material inspected - plugins/terraform/skills/provider-ephemeral-resources/SKILL.md - README.md - LICENSE - SKILLS.md ### Our findings - Ephemeral resources produce values that are never persisted to state or plan. - Open talks to the provider client; Renew cannot return a new result and can only refresh what Open produced. - The design rules forbid logging the value or putting it in a diagnostic. - The skill does not use plan modifiers, import, or an id, because there is no state. - Definition passes lease handles through Private and sets renewal margins before expiration. - It rejects no-op Close implementations that would falsely imply credential revocation. - RenewAt is set before the actual expiry because Terraform renews lazily rather than on a precise timer. ### Not established by this review - The resource was not executed and its tools were not called. - No skill execution, authenticated service operation, or outcome benchmark was performed. - Not executed: it was not installed or run. The review applies to the material and revision named here. A newer upstream release can change its behavior. 03 / PUT IT TO WORK ## Add a skill to your workflow. [Upstream setup instructions ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/README.md) DOCUMENTED COMMAND npx skills add hashicorp/agent-skills/plugins/terraform/skills/provider-ephemeral-resources Copy command ↗ Run in your terminal to choose your AI tools, project or global scope, and installation method. This short command follows the current upstream version; the review covers the revision shown above. - The README says to install one skill from its path. SKILLS.md lists plugins/terraform/skills/provider-ephemeral-resources as active. - The documented command does not pin the reviewed revision. Inspect the installed file before use. - Keep secret attributes Sensitive and out of diagnostics, as the file requires. - For manual installation instead, download the complete bundle from https://undominated.ai/resources/skills/hashicorp-provider-ephemeral-resources/bundle.zip and extract it into a new directory. It holds SKILL.md unchanged at revision f706481a, the upstream licence and an attribution file. - Place the extracted directory in your host's documented skills directory, named provider-ephemeral-resources. Keep SKILL.md and the licence together. ### Before you start - Node.js and npm for the documented Skills installer - Go and the Plugin Framework only if you implement the examples ### Compatibility Agent Skills-compatible hosts · Terraform Plugin Framework ### Local instructions; runtime access depends on the workflow - Can issue, renew and revoke real credentials; avoid logging returned values and use a test account. ### Cost model The skill is free; service usage and infrastructure can incur charges. THE COMPLETE REVIEWED DEFINITION ## Read it before you reuse it. Original source bytes, with attribution. Review the host-specific setup notes above. Copy definition ↗ [Download definition + licence ↗](/resources/skills/hashicorp-provider-ephemeral-resources/bundle.zip)[Raw Markdown ↗](/resources/skills/hashicorp-provider-ephemeral-resources/definition.md) --- name: provider-ephemeral-resources description: >- Implement Terraform provider ephemeral resources with the Plugin Framework: the Open/Renew/Close lifecycle, ephemeral schema design, registration via EphemeralResources, renewal for expiring credentials, and how ephemeral values flow into write-only attributes and provider configuration. Use when adding an ephemeral resource, exposing secrets/tokens/certificates that must never persist in state or plan, deciding between an ephemeral resource and a data source, or wiring short-lived credentials from one provider into another. license: MPL-2.0 metadata: lifecycle-status: active copyright: Copyright IBM Corp. 2026 version: "0.0.1" --- # Terraform Provider Ephemeral Resources Ephemeral resources (Terraform 1.10+) produce values that are **never persisted to state or plan**. They exist for exactly one job: handing secrets — tokens, generated passwords, short-lived certificates, decrypted values — to the parts of a configuration that need them, without writing them to disk. Any data source that returns a sensitive value is a candidate to be (or to also exist as) an ephemeral resource. Official docs: [Ephemeral Resources](https://developer.hashicorp.com/terraform/plugin/framework/ephemeral-resources). ## When to Use One | Situation | Use | |---|---| | Read-only lookup of non-sensitive data | Data source | | Value is sensitive and only needed at apply time (DB password for a provider block, token for a write-only attribute) | Ephemeral resource | | Sensitive value that downstream *managed resources* must store (e.g. as an attribute) | Regular resource/data source — but pair with write-only attributes where possible | | Credential that expires mid-operation (STS-style tokens, short-TTL leases) | Ephemeral resource with `Renew` | Ephemeral results can be used in provider configuration, write-only attributes, provisioner configuration, and other ephemeral contexts — but not in regular attributes, because those persist to state. ## Lifecycle Terraform calls up to three methods per operation: - **`Open`** (required) — fetch or create the value; runs during plan and/or apply whenever the result is needed. There is no state to refresh and nothing to import. - **`Renew`** (optional) — called when the wall clock passes the `RenewAt` returned by `Open`/`Renew`, for values that expire while Terraform is still running. Renew cannot return a new result — it can only extend/refresh what `Open` produced (e.g. re-lease the same credential); if the value itself changes on renewal, the API is not renewable in this sense and `Open` must return a longer-lived value. - **`Close`** (optional) — called when Terraform is done with the value; revoke leases or delete temporary credentials here. `Open` can pass bytes forward via `resp.Private`; `Renew` and `Close` receive them — use this for lease IDs needed to renew/revoke. ## Implementation ```go var ( _ ephemeral.EphemeralResource = &tokenEphemeralResource{} _ ephemeral.EphemeralResourceWithConfigure = &tokenEphemeralResource{} _ ephemeral.EphemeralResourceWithRenew = &tokenEphemeralResource{} _ ephemeral.EphemeralResourceWithClose = &tokenEphemeralResource{} ) func NewTokenEphemeralResource() ephemeral.EphemeralResource { return &tokenEphemeralResource{} } type tokenEphemeralResource struct { client *examplecloud.Client } type tokenEphemeralResourceModel struct { RoleName types.String `tfsdk:"role_name"` Token types.String `tfsdk:"token"` LeaseID types.String `tfsdk:"lease_id"` } func (r *tokenEphemeralResource) Metadata(_ context.Context, req ephemeral.MetadataRequest, resp *ephemeral.MetadataResponse) { resp.TypeName = req.ProviderTypeName + "_token" } func (r *tokenEphemeralResource) Schema(_ context.Context, _ ephemeral.SchemaRequest, resp *ephemeral.SchemaResponse) { resp.Schema = schema.Schema{ Attributes: map[string]schema.Attribute{ "role_name": schema.StringAttribute{ Required: true, MarkdownDescription: "Role to obtain a token for.", }, "token": schema.StringAttribute{ Computed: true, Sensitive: true, MarkdownDescription: "The issued token. Never persisted to state.", }, "lease_id": schema.StringAttribute{ Computed: true, MarkdownDescription: "Identifier of the token lease.", }, }, } } func (r *tokenEphemeralResource) Open(ctx context.Context, req ephemeral.OpenRequest, resp *ephemeral.OpenResponse) { var data tokenEphemeralResourceModel resp.Diagnostics.Append(req.Config.Get(ctx, &data)...) if resp.Diagnostics.HasError() { return } lease, err := r.client.IssueToken(ctx, data.RoleName.ValueString()) if err != nil { resp.Diagnostics.AddError( "Error opening Token", fmt.Sprintf("issuing token for role (%s): %s", data.RoleName.ValueString(), err), ) return } data.Token = types.StringValue(lease.Token) data.LeaseID = types.StringValue(lease.ID) resp.RenewAt = lease.ExpiresAt.Add(-2 * time.Minute) // renew with margin resp.Private.SetKey(ctx, "lease_id", []byte(lease.ID)) resp.Diagnostics.Append(resp.Result.Set(ctx, &data)...) } func (r *tokenEphemeralResource) Renew(ctx context.Context, req ephemeral.RenewRequest, resp *ephemeral.RenewResponse) { leaseID, diags := req.Private.GetKey(ctx, "lease_id") resp.Diagnostics.Append(diags...) if resp.Diagnostics.HasError() { return } lease, err := r.client.RenewLease(ctx, string(leaseID)) if err != nil { resp.Diagnostics.AddError("Error renewing Token", err.Error()) return } resp.RenewAt = lease.ExpiresAt.Add(-2 * time.Minute) } func (r *tokenEphemeralResource) Close(ctx context.Context, req ephemeral.CloseRequest, resp *ephemeral.CloseResponse) { leaseID, diags := req.Private.GetKey(ctx, "lease_id") resp.Diagnostics.Append(diags...) if resp.Diagnostics.HasError() { return } if err := r.client.RevokeLease(ctx, string(leaseID)); err != nil { resp.Diagnostics.AddError("Error closing Token", err.Error()) } } ``` `Configure` follows the same ProviderData-cast pattern as resources (the `provider-resources` skill, if available, shows it); the client comes from `resp.EphemeralResourceData` set in the provider's `Configure`. ## Registration The provider opts in via `provider.ProviderWithEphemeralResources`: ```go var _ provider.ProviderWithEphemeralResources = &examplecloudProvider{} func (p *examplecloudProvider) EphemeralResources(_ context.Context) []func() ephemeral.EphemeralResource { return []func() ephemeral.EphemeralResource{ NewTokenEphemeralResource(), } } ``` Set `resp.EphemeralResourceData = client` in the provider's `Configure` alongside `ResourceData`/`DataSourceData`. ## Design Rules - **Never log the value, never put it in a diagnostic.** The whole point is non-persistence; an error message containing the token defeats it. - Mark the secret attribute `Sensitive: true` anyway — it guards rendering in the ephemeral value's own lifecycle output. - No plan modifiers, no import, no `id` convention — there is no state for any of them to act on. - Schema inputs follow the same rules as data source arguments; expose the API's identifiers (`role_name`), not invented ones. - Set `RenewAt` with a safety margin before the real expiry; Terraform renews lazily, not on a precise timer. - If the upstream value cannot be revoked, skip `Close` rather than implementing a no-op that suggests revocation happens. ## Testing Ephemeral results never reach state, so tests assert them indirectly — the standard pattern echoes the ephemeral value through the `echoprovider` into a regular resource the test can inspect. Minimum coverage: a basic open-and-use test and per-attribute tests alongside required fields. Use the `provider-test-patterns` skill (if available) — its ephemeral testing reference covers the echoprovider setup, version gating (`tfversion.SkipBelow(tfversion.Version1_10_0)`), and multi-step patterns. ## Documentation Registry docs live at `docs/ephemeral-resources/.md`, generated by `tfplugindocs` like every other page type. Use the `provider-docs` skill (if available) for the workflow; document the renewal/revocation behavior explicitly — users need to know whether closing their Terraform run revokes the credential. ## Checklist - [ ] Value genuinely must not persist (otherwise a data source is simpler) - [ ] `Open` implemented; `Renew`/`Close` only where the API supports them - [ ] Secret attributes `Sensitive: true`; value never logged or in diagnostics - [ ] Lease/handle passed via `Private`, not via the result - [ ] `RenewAt` set with margin for expiring credentials - [ ] Registered in `EphemeralResources()`; `EphemeralResourceData` set in provider Configure - [ ] Echo-provider acceptance tests, version-gated to Terraform >= 1.10 - [ ] Docs page explains lifetime, renewal, and revocation behavior The download contains SKILL.md . Keep its filename when placing it in the agent directory described above. By **HashiCorp**. [Exact upstream source ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/provider-ephemeral-resources/SKILL.md) · [Licence](/resources/skills/hashicorp-provider-ephemeral-resources/LICENSE.txt) · [Attribution](/resources/skills/hashicorp-provider-ephemeral-resources/ATTRIBUTION.txt) SHA-256 e725873b52addac31d27e313f48e85fa39182007fd1caf558feeb35026964d34 Read the applicable licence Mozilla Public License Version 2.0 ================================== 1. Definitions -------------- 1.1. "Contributor" means each individual or legal entity that creates, contributes to the creation of, or owns Covered Software. 1.2. "Contributor Version" means the combination of the Contributions of others (if any) used by a Contributor and that particular Contributor's Contribution. 1.3. "Contribution" means Covered Software of a particular Contributor. 1.4. "Covered Software" means Source Code Form to which the initial Contributor has attached the notice in Exhibit A, the Executable Form of such Source Code Form, and Modifications of such Source Code Form, in each case including portions thereof. 1.5. "Incompatible With Secondary Licenses" means (a) that the initial Contributor has attached the notice described in Exhibit B to the Covered Software; or (b) that the Covered Software was made available under the terms of version 1.1 or earlier of the License, but not also under the terms of a Secondary License. 1.6. "Executable Form" means any form of the work other than Source Code Form. 1.7. "Larger Work" means a work that combines Covered Software with other material, in a separate file or files, that is not Covered Software. 1.8. "License" means this document. 1.9. "Licensable" means having the right to grant, to the maximum extent possible, whether at the time of the initial grant or subsequently, any and all of the rights conveyed by this License. 1.10. "Modifications" means any of the following: (a) any file in Source Code Form that results from an addition to, deletion from, or modification of the contents of Covered Software; or (b) any new file in Source Code Form that contains any Covered Software. 1.11. "Patent Claims" of a Contributor means any patent claim(s), including without limitation, method, process, and apparatus claims, in any patent Licensable by such Contributor that would be infringed, but for the grant of the License, by the making, using, selling, offering for sale, having made, import, or transfer of either its Contributions or its Contributor Version. 1.12. "Secondary License" means either the GNU General Public License, Version 2.0, the GNU Lesser General Public License, Version 2.1, the GNU Affero General Public License, Version 3.0, or any later versions of those licenses. 1.13. "Source Code Form" means the form of the work preferred for making modifications. 1.14. "You" (or "Your") means an individual or a legal entity exercising rights under this License. For legal entities, "You" includes any entity that controls, is controlled by, or is under common control with You. For purposes of this definition, "control" means (a) the power, direct or indirect, to cause the direction or management of such entity, whether by contract or otherwise, or (b) ownership of more than fifty percent (50%) of the outstanding shares or beneficial ownership of such entity. 2. License Grants and Conditions -------------------------------- 2.1. Grants Each Contributor hereby grants You a world-wide, royalty-free, non-exclusive license: (a) under intellectual property rights (other than patent or trademark) Licensable by such Contributor to use, reproduce, make available, modify, display, perform, distribute, and otherwise exploit its Contributions, either on an unmodified basis, with Modifications, or as part of a Larger Work; and (b) under Patent Claims of such Contributor to make, use, sell, offer for sale, have made, import, and otherwise transfer either its Contributions or its Contributor Version. 2.2. Effective Date The licenses granted in Section 2.1 with respect to any Contribution become effective for each Contribution on the date the Contributor first distributes such Contribution. 2.3. Limitations on Grant Scope The licenses granted in this Section 2 are the only rights granted under this License. No additional rights or licenses will be implied from the distribution or licensing of Covered Software under this License. Notwithstanding Section 2.1(b) above, no patent license is granted by a Contributor: (a) for any code that a Contributor has removed from Covered Software; or (b) for infringements caused by: (i) Your and any other third party's modifications of Covered Software, or (ii) the combination of its Contributions with other software (except as part of its Contributor Version); or (c) under Patent Claims infringed by Covered Software in the absence of its Contributions. This License does not grant any rights in the trademarks, service marks, or logos of any Contributor (except as may be necessary to comply with the notice requirements in Section 3.4). 2.4. Subsequent Licenses No Contributor makes additional grants as a result of Your choice to distribute the Covered Software under a subsequent version of this License (see Section 10.2) or under the terms of a Secondary License (if permitted under the terms of Section 3.3). 2.5. Representation Each Contributor represents that the Contributor believes its Contributions are its original creation(s) or it has sufficient rights to grant the rights to its Contributions conveyed by this License. 2.6. Fair Use This License is not intended to limit any rights You have under applicable copyright doctrines of fair use, fair dealing, or other equivalents. 2.7. Conditions Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted in Section 2.1. 3. Responsibilities ------------------- 3.1. Distribution of Source Form All distribution of Covered Software in Source Code Form, including any Modifications that You create or to which You contribute, must be under the terms of this License. You must inform recipients that the Source Code Form of the Covered Software is governed by the terms of this License, and how they can obtain a copy of this License. You may not attempt to alter or restrict the recipients' rights in the Source Code Form. 3.2. Distribution of Executable Form If You distribute Covered Software in Executable Form then: (a) such Covered Software must also be made available in Source Code Form, as described in Section 3.1, and You must inform recipients of the Executable Form how they can obtain a copy of such Source Code Form by reasonable means in a timely manner, at a charge no more than the cost of distribution to the recipient; and (b) You may distribute such Executable Form under the terms of this License, or sublicense it under different terms, provided that the license for the Executable Form does not attempt to limit or alter the recipients' rights in the Source Code Form under this License. 3.3. Distribution of a Larger Work You may create and distribute a Larger Work under terms of Your choice, provided that You also comply with the requirements of this License for the Covered Software. If the Larger Work is a combination of Covered Software with a work governed by one or more Secondary Licenses, and the Covered Software is not Incompatible With Secondary Licenses, this License permits You to additionally distribute such Covered Software under the terms of such Secondary License(s), so that the recipient of the Larger Work may, at their option, further distribute the Covered Software under the terms of either this License or such Secondary License(s). 3.4. Notices You may not remove or alter the substance of any license notices (including copyright notices, patent notices, disclaimers of warranty, or limitations of liability) contained within the Source Code Form of the Covered Software, except that You may alter any license notices to the extent required to remedy known factual inaccuracies. 3.5. Application of Additional Terms You may choose to offer, and to charge a fee for, warranty, support, indemnity or liability obligations to one or more recipients of Covered Software. However, You may do so only on Your own behalf, and not on behalf of any Contributor. You must make it absolutely clear that any such warranty, support, indemnity, or liability obligation is offered by You alone, and You hereby agree to indemnify every Contributor for any liability incurred by such Contributor as a result of warranty, support, indemnity or liability terms You offer. You may include additional disclaimers of warranty and limitations of liability specific to any jurisdiction. 4. Inability to Comply Due to Statute or Regulation --------------------------------------------------- If it is impossible for You to comply with any of the terms of this License with respect to some or all of the Covered Software due to statute, judicial order, or regulation then You must: (a) comply with the terms of this License to the maximum extent possible; and (b) describe the limitations and the code they affect. Such description must be placed in a text file included with all distributions of the Covered Software under this License. Except to the extent prohibited by statute or regulation, such description must be sufficiently detailed for a recipient of ordinary skill to be able to understand it. 5. Termination -------------- 5.1. The rights granted under this License will terminate automatically if You fail to comply with any of its terms. However, if You become compliant, then the rights granted under this License from a particular Contributor are reinstated (a) provisionally, unless and until such Contributor explicitly and finally terminates Your grants, and (b) on an ongoing basis, if such Contributor fails to notify You of the non-compliance by some reasonable means prior to 60 days after You have come back into compliance. Moreover, Your grants from a particular Contributor are reinstated on an ongoing basis if such Contributor notifies You of the non-compliance by some reasonable means, this is the first time You have received notice of non-compliance with this License from such Contributor, and You become compliant prior to 30 days after Your receipt of the notice. 5.2. If You initiate litigation against any entity by asserting a patent infringement claim (excluding declaratory judgment actions, counter-claims, and cross-claims) alleging that a Contributor Version directly or indirectly infringes any patent, then the rights granted to You by any and all Contributors for the Covered Software under Section 2.1 of this License shall terminate. 5.3. In the event of termination under Sections 5.1 or 5.2 above, all end user license agreements (excluding distributors and resellers) which have been validly granted by You or Your distributors under this License prior to termination shall survive termination. ************************************************************************ * * * 6. Disclaimer of Warranty * * ------------------------- * * * * Covered Software is provided under this License on an "as is" * * basis, without warranty of any kind, either expressed, implied, or * * statutory, including, without limitation, warranties that the * * Covered Software is free of defects, merchantable, fit for a * * particular purpose or non-infringing. The entire risk as to the * * quality and performance of the Covered Software is with You. * * Should any Covered Software prove defective in any respect, You * * (not any Contributor) assume the cost of any necessary servicing, * * repair, or correction. This disclaimer of warranty constitutes an * * essential part of this License. No use of any Covered Software is * * authorized under this License except under this disclaimer. * * * ************************************************************************ ************************************************************************ * * * 7. Limitation of Liability * * -------------------------- * * * * Under no circumstances and under no legal theory, whether tort * * (including negligence), contract, or otherwise, shall any * * Contributor, or anyone who distributes Covered Software as * * permitted above, be liable to You for any direct, indirect, * * special, incidental, or consequential damages of any character * * including, without limitation, damages for lost profits, loss of * * goodwill, work stoppage, computer failure or malfunction, or any * * and all other commercial damages or losses, even if such party * * shall have been informed of the possibility of such damages. This * * limitation of liability shall not apply to liability for death or * * personal injury resulting from such party's negligence to the * * extent applicable law prohibits such limitation. Some * * jurisdictions do not allow the exclusion or limitation of * * incidental or consequential damages, so this exclusion and * * limitation may not apply to You. * * * ************************************************************************ 8. Litigation ------------- Any litigation relating to this License may be brought only in the courts of a jurisdiction where the defendant maintains its principal place of business and such litigation shall be governed by laws of that jurisdiction, without reference to its conflict-of-law provisions. Nothing in this Section shall prevent a party's ability to bring cross-claims or counter-claims. 9. Miscellaneous ---------------- This License represents the complete agreement concerning the subject matter hereof. If any provision of this License is held to be unenforceable, such provision shall be reformed only to the extent necessary to make it enforceable. Any law or regulation which provides that the language of a contract shall be construed against the drafter shall not be used to construe this License against a Contributor. 10. Versions of the License --------------------------- 10.1. New Versions Mozilla Foundation is the license steward. Except as provided in Section 10.3, no one other than the license steward has the right to modify or publish new versions of this License. Each version will be given a distinguishing version number. 10.2. Effect of New Versions You may distribute the Covered Software under the terms of the version of the License under which You originally received the Covered Software, or under the terms of any subsequent version published by the license steward. 10.3. Modified Versions If you create software not governed by this License, and you want to create a new license for such software, you may create and use a modified version of this License if you rename the license and remove any references to the name of the license steward (except to note that such modified license differs from this License). 10.4. Distributing Source Code Form that is Incompatible With Secondary Licenses If You choose to distribute Source Code Form that is Incompatible With Secondary Licenses under the terms of this version of the License, the notice described in Exhibit B of this License must be attached. Exhibit A - Source Code Form License Notice ------------------------------------------- This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/. If it is not possible or desirable to put the notice in a particular file, then You may include the notice in a location (such as a LICENSE file in a relevant directory) where a recipient would be likely to look for such a notice. You may add additional accurate notices of copyright ownership. Exhibit B - "Incompatible With Secondary Licenses" Notice --------------------------------------------------------- This Source Code Form is "Incompatible With Secondary Licenses", as defined by the Mozilla Public License, v. 2.0. 04 / FOLLOW THE EVIDENCE ## The source trail. Our notes are separate from the original resource. Check upstream before adopting a new version. - [Pinned skill definition ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/provider-ephemeral-resources/SKILL.md) Checked 2026-10-14 https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/provider-ephemeral-resources/SKILL.md Supports: summary, whySelected, bestFor, limitations, install, access, review - [Publisher repository and installation guidance ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/README.md) Checked 2026-10-14 https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/README.md Supports: install - [MPL-2.0 licence ↗](https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/LICENSE) Checked 2026-10-14 https://github.com/hashicorp/agent-skills/blob/f706481af9b8fedb66de909f6243ad29601afa0c/LICENSE Supports: license - [Pinned continuation review C2-W39 ↗](https://raw.githubusercontent.com/hashicorp/agent-skills/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/provider-ephemeral-resources/SKILL.md) Checked 2026-10-15 https://raw.githubusercontent.com/hashicorp/agent-skills/f706481af9b8fedb66de909f6243ad29601afa0c/plugins/terraform/skills/provider-ephemeral-resources/SKILL.md Supports: review.findings, bestFor KEEP COMPARING ## Other approaches to consider. Related by category or shared topics. These are alternatives to inspect, not a measured quality order. [### Provider actions ↗ Guides Terraform Plugin Framework action registration, configuration and lifecycle-trigger integration.](/skills/hashicorp-provider-actions/)[### Provider configuration ↗ Builds a provider Configure method as a credential chain and names every source a failed login tried.](/skills/hashicorp-provider-configuration/)[### Provider framework migration ↗ Starts by asking whether to migrate at all, then muxes the provider and verifies before claiming the port is done.](/skills/hashicorp-provider-framework-migration/) [AI Tools ↗](/tools/)[Skills ↗](/skills/)[Agents ↗](/agents/)[MCP Servers ↗](/mcp-servers/)[Workflows ↗](/workflows/) ## Continue your investigation - [Choose a toolkit](/tools/) - [Inspect execution hosts](/agents/) - [Check tool access](/mcp-servers/) - [Check project dependencies](/check-repo/)