diff --git a/INTENT.md b/INTENT.md new file mode 100644 index 0000000..07f0981 --- /dev/null +++ b/INTENT.md @@ -0,0 +1,205 @@ +# open-reuse + +*Managed continuity for valuable open-source integrations.* + +## 1. Intent + +open-reuse exists to transform proven integrations with open-source software into **structured, maintainable, and automatically managed integration assets**. + +In practice, valuable integrations are often created pragmatically: a component is reused, a service is adapted, a module is extracted, or a system is extended. Once such integrations demonstrate real-world value, they become long-term dependencies on upstream evolution. + +open-reuse provides a framework and service model to ensure that these integrations remain **robust, transparent, and continuously maintainable** over time. + +The goal is not merely reuse, but **sustainable reuse under change**. + +--- + +## 2. Problem Statement + +Open-source reuse commonly suffers from the following failure modes: + +- Integrations are **implicit and undocumented** +- Boundaries between systems are **unclear or leaky** +- Upstream changes introduce **silent breakage or drift** +- Updates are **manual, inconsistent, or postponed** +- Forks and patches become **unmaintainable technical debt** +- Responsibility is **unclear or lost over time** + +As a result, initially valuable integrations degrade into fragile liabilities. + +--- + +## 3. Core Idea + +open-reuse treats every valuable integration as a **first-class, managed artifact**. + +A working integration is: + +1. **Analyzed** — its structure and dependencies are understood +2. **Classified** — its reuse mode is explicitly defined +3. **Refactored** — clear boundaries and interfaces are established +4. **Reframed** — it is expressed as an *Integration Definition* +5. **Registered** — it becomes part of the open-reuse system +6. **Maintained** — it is continuously monitored, validated, and updated + +Automation handles the default case. +Humans intervene only when necessary. + +--- + +## 4. Lifecycle + +```text +Build Integration +→ Prove Value +→ Analyze Integration +→ Classify Reuse Mode +→ Refactor Boundaries +→ Create Integration Definition +→ Register Integration +→ Monitor Upstream Changes +→ Auto-update + Validate +→ Escalate if Required +```` + +open-reuse explicitly starts **after an integration has proven its value**. + +--- + +## 5. Key Concepts + +### Integration + +A working reuse relationship between a local system and upstream open-source software. + +### Proven Integration + +An integration that has been built, tested, and validated as useful in practice. + +### Integration Definition + +A structured, machine-readable description of an integration, including: + +* upstream sources +* reuse mode +* boundaries and interfaces +* update policies +* validation requirements + +### Reuse Mode + +The classified pattern of reuse, such as: + +* dependency +* plugin +* adapter +* component extraction +* patch overlay +* fork continuation + +### Reuse Boundary + +A clearly defined interface that isolates local systems from upstream change. + +### Validation Harness + +A set of automated checks ensuring the integration remains functional and compliant. + +### Update Policy + +Rules governing how upstream changes are handled (automatic, reviewed, blocked). + +### Maintainer + +A responsible party notified when automation cannot safely proceed. + +### Escalation Case + +A condition requiring human inspection, such as: + +* breaking changes +* failed validation +* security issues +* license changes + +--- + +## 6. System Responsibilities + +open-reuse provides: + +* A **registry** for integration definitions +* Continuous **upstream monitoring** +* **Impact analysis** for upstream changes +* Automated **update execution** where safe +* **Validation pipelines** for correctness and compliance +* **Escalation mechanisms** to maintainers +* A transparent **audit trail** of integration evolution + +--- + +## 7. Design Principles + +### Explicit over implicit + +All integrations must be defined, structured, and inspectable. + +### Boundaries first + +Every integration must expose a clear and controlled interface. + +### Automate the default + +Safe updates and validations should require no human intervention. + +### Human-in-the-loop for uncertainty + +Ambiguous or high-risk changes must be escalated. + +### Preserve upstream alignment + +Prefer adaptation and composition over forks and divergence. + +### Keep knowledge executable + +All integration knowledge must be encoded in version-controlled artifacts. + +--- + +## 8. Scope + +open-reuse focuses on: + +* Integrations between open-source applications and systems +* Long-lived reuse relationships requiring maintenance +* Automated handling of upstream evolution + +open-reuse does **not** aim to: + +* Replace package managers +* Replace CI/CD systems +* Act as a generic integration platform +* Manage initial integration development + +It complements these by managing **what happens after integration success**. + +--- + +## 9. Vision + +A world where reuse of open-source software is: + +* **Reliable** — integrations do not silently degrade +* **Transparent** — dependencies and boundaries are explicit +* **Maintainable** — updates are continuous and systematic +* **Scalable** — reuse can grow without accumulating hidden risk + +open-reuse enables organizations to build on open-source ecosystems +without turning integration into long-term fragility. + +--- + +## 10. One-Sentence Summary + +open-reuse turns proven open-source integrations into structured, registered, and automatically maintained assets with explicit boundaries, validation, and controlled evolution. + diff --git a/ProductRequirementsDocument.md b/ProductRequirementsDocument.md new file mode 100644 index 0000000..428dc9f --- /dev/null +++ b/ProductRequirementsDocument.md @@ -0,0 +1,1020 @@ +# open-reuse PRD + +*Product Requirements Document* + +## 1. Document Status + +**Product:** open-reuse +**Document Type:** Product Requirements Document +**Status:** Draft v0.1 +**Primary Audience:** Product, engineering, maintainers, platform teams, open-source integration owners +**Related Artifacts:** INTENT.md, future Integration Definition Schema, future Functional Requirements Specification +**Framing Reference:** This PRD follows the InfoTechPrimer understanding of a PRD as a product-definition artifact that captures purpose, scope, constraints, and success criteria without prescribing implementation details. :contentReference[oaicite:0]{index=0} + +--- + +## 2. Product Summary + +**open-reuse** is a framework and service for transforming valuable open-source integrations into structured, registered, and automatically maintained integration assets. + +It starts after an integration has already been built, tested, and deemed useful. open-reuse then helps analyze, classify, refactor, reframe, register, monitor, validate, update, and escalate that integration as upstream open-source code evolves. + +The product exists to prevent valuable open-source reuse from degrading into hidden coupling, unmanaged forks, brittle patches, silent drift, or long-term technical debt. + +--- + +## 3. One-Sentence Product Definition + +**open-reuse turns proven open-source integrations into structured, registered, and automatically maintained assets with explicit boundaries, validation, update policies, and maintainer escalation.** + +--- + +## 4. Problem Statement + +Open-source software is frequently reused across systems in pragmatic and valuable ways. Teams adapt components, depend on APIs, embed modules, copy useful code, patch upstream projects, or maintain lightweight forks. + +These integrations often begin as successful engineering work. However, once they become important, they create a continuing dependency on upstream evolution. + +Common failure modes include: + +- The integration is not explicitly documented. +- The reused upstream surface is unclear. +- The boundary between local system and upstream project is leaky. +- Updates are handled manually and inconsistently. +- Breaking upstream changes are discovered too late. +- Security or license changes are missed. +- Local patches become difficult to understand. +- Forks silently diverge from upstream. +- Responsibility for the integration becomes unclear. +- Maintainers are notified only after something has already broken. + +The result is that reuse, initially a strength, becomes a source of fragility. + +open-reuse addresses this by making open-source reuse explicit, classified, testable, monitorable, and maintainable under change. + +--- + +## 5. Product Intent + +open-reuse exists to provide a structured lifecycle for valuable open-source integrations after they have proven their usefulness. + +The product shall support the transition from: + +```text +Working but informal integration +```` + +to: + +```text +Registered, classified, validated, and automatically maintained integration asset +``` + +The core product intent is to make sustainable reuse of open-source software possible at scale without relying on undocumented human memory or ad-hoc maintenance discipline. + +--- + +## 6. Target Users + +### 6.1 Primary Users + +#### Integration Maintainers + +People or teams responsible for keeping a specific integration functional over time. + +They need: + +* Clear visibility into upstream changes +* Escalation when automation cannot safely proceed +* Evidence about why an update passed or failed +* Traceability of integration decisions + +#### Platform Engineering Teams + +Teams responsible for reusable internal platforms, developer experience, shared services, or enterprise architecture. + +They need: + +* A registry of integration assets +* Standardized integration definitions +* Update automation +* Policy-based control +* Auditable governance + +#### Product Engineering Teams + +Teams that build products by integrating open-source tools or components. + +They need: + +* A way to operationalize valuable integrations +* Protection against upstream breakage +* Reduced long-term maintenance burden +* Reliable dependency evolution + +--- + +### 6.2 Secondary Users + +#### Security Teams + +They need visibility into reused upstream code, security advisories, dependency exposure, and risky update conditions. + +#### Legal / Compliance Teams + +They need visibility into license changes, attribution requirements, and reuse patterns that may trigger compliance obligations. + +#### Open-Source Program Offices + +They need a structured view of how open-source software is reused internally and where upstream collaboration may be beneficial. + +#### AI / Automation Agents + +They may act as analysis, transformation, validation, or maintenance assistants operating on registered integration definitions. + +--- + +## 7. Product Goals + +### Goal 1: Make integrations explicit + +open-reuse shall provide a structured way to describe open-source integrations, including upstream sources, reuse mode, local boundaries, validation requirements, update policies, and maintainers. + +### Goal 2: Classify reuse risk + +open-reuse shall classify integrations by reuse pattern and associated maintenance risk. + +Examples: + +* Dependency reuse +* Plugin reuse +* Adapter reuse +* Component extraction +* Patch overlay +* Fork continuation + +### Goal 3: Support systematic refactoring into maintainable boundaries + +open-reuse shall help teams reframe valuable integrations around explicit boundaries so upstream change can be isolated and tested. + +### Goal 4: Register integrations as managed assets + +open-reuse shall provide a registry where structured integration definitions can be stored, inspected, searched, and governed. + +### Goal 5: Monitor upstream change + +open-reuse shall track upstream releases, commits, tags, dependency updates, security advisories, license changes, and other relevant signals. + +### Goal 6: Validate integration continuity + +open-reuse shall support automated validation of whether a registered integration still works after upstream change. + +### Goal 7: Automate safe maintenance + +open-reuse shall support automated update attempts, validation runs, reporting, and update proposals where risk is acceptable. + +### Goal 8: Escalate uncertainty to humans + +open-reuse shall notify registered maintainers when automation cannot safely complete an update or when policy requires review. + +### Goal 9: Preserve traceability + +open-reuse shall maintain an audit trail of integration definitions, upstream versions, update attempts, validation results, maintainer actions, and escalation decisions. + +--- + +## 8. Non-Goals + +open-reuse shall not initially aim to: + +* Replace package managers +* Replace CI/CD systems +* Replace source control platforms +* Replace dependency update tools +* Replace security scanners +* Replace software composition analysis tools +* Become a general workflow automation platform +* Build initial integrations from scratch +* Guarantee automatic resolution of all upstream breaking changes +* Eliminate the need for maintainers +* Force all integrations into one implementation pattern + +open-reuse complements existing developer tools by managing the lifecycle and continuity of valuable integrations. + +--- + +## 9. Product Scope + +## 9.1 In Scope + +The initial product scope includes: + +* Definition of an open-reuse Integration Definition format +* Registration of integration definitions +* Classification of reuse modes +* Assignment of maintainers +* Tracking of upstream source references +* Tracking of local integration boundaries +* Definition of update policies +* Definition of validation requirements +* Upstream monitoring +* Change impact classification +* Automated validation triggers +* Escalation to maintainers +* Status reporting +* Audit trail of integration lifecycle events + +--- + +## 9.2 Out of Scope for Initial Version + +The following are out of scope for the first product version: + +* Fully autonomous code migration for all languages +* Full semantic understanding of arbitrary application architectures +* Complete legal compliance automation +* Complete vulnerability remediation automation +* Hosting of upstream code mirrors as a primary function +* Replacement of Renovate, Dependabot, OpenRewrite, CI systems, or SCA tools +* Multi-tenant enterprise billing +* Marketplace functionality +* Public SaaS operation as the default deployment model +* Automatic acceptance of risky updates without human approval + +--- + +## 10. Core Lifecycle + +open-reuse shall support the following lifecycle: + +```text +Build Integration +→ Prove Value +→ Analyze Integration +→ Classify Reuse Mode +→ Refactor Boundaries +→ Create Integration Definition +→ Register Integration +→ Monitor Upstream Changes +→ Analyze Change Impact +→ Attempt Safe Update +→ Validate Integration +→ Report Result +→ Escalate if Required +``` + +Important lifecycle principle: + +**open-reuse starts after the integration has proven value.** + +It does not primarily optimize initial experimentation. It operationalizes successful reuse before it becomes unmanaged technical debt. + +--- + +## 11. Core Concepts + +## 11.1 Integration + +A working reuse relationship between a local system and one or more upstream open-source systems, repositories, packages, APIs, services, modules, files, schemas, or artifacts. + +## 11.2 Proven Integration + +An integration that has been built, tested, and deemed valuable enough to preserve and maintain. + +## 11.3 Integration Definition + +A structured, machine-readable description of a proven integration. + +It includes: + +* Integration identity +* Upstream source references +* Reuse mode +* Reused surfaces +* Local boundaries +* Validation requirements +* Update policies +* Maintainer assignments +* Escalation conditions +* Audit metadata + +## 11.4 Reuse Mode + +The classified pattern by which upstream open-source functionality is reused. + +Initial reuse modes: + +| Reuse Mode | Description | Relative Risk | +| -------------------- | ------------------------------------------------------------- | ------------- | +| Dependency reuse | Upstream is consumed as a package, library, image, or service | Low | +| Plugin reuse | Upstream is extended through official extension points | Low to medium | +| Adapter reuse | Upstream behavior is wrapped behind a local interface | Medium | +| Component extraction | Selected internal parts of upstream are reused | High | +| Patch overlay | Local patches are maintained on top of upstream | High | +| Fork continuation | A local fork evolves separately but remains upstream-aware | Very high | + +## 11.5 Reuse Boundary + +The explicit local seam between the host system and the reused upstream functionality. + +Examples: + +* Interface +* Port +* Adapter +* Wrapper service +* API facade +* Plugin boundary +* CLI boundary +* Schema boundary +* Event contract +* File-level copy boundary + +## 11.6 Validation Harness + +The set of automated checks used to determine whether the integration still works. + +Examples: + +* Unit tests +* Contract tests +* Integration tests +* Golden-path tests +* Snapshot tests +* Build checks +* API compatibility checks +* Schema compatibility checks +* Security scans +* License checks + +## 11.7 Update Policy + +Rules determining how upstream changes are handled. + +Example outcomes: + +* Ignore +* Monitor only +* Open issue +* Open update proposal +* Open pull request +* Auto-merge after validation +* Require maintainer review +* Block update +* Trigger escalation + +## 11.8 Maintainer + +A registered responsible person, team, group, or automation identity accountable for reviewing escalations and maintaining the integration. + +## 11.9 Escalation Case + +A situation where automation cannot safely proceed or policy requires human inspection. + +Examples: + +* Failed validation +* Breaking API change +* Changed license +* Security advisory +* Upstream deletion or archival +* Patch conflict +* Fork divergence +* Unknown change impact +* Missing maintainer +* Repeated automation failure + +--- + +## 12. Functional Product Capabilities + +This section describes product-level capabilities without prescribing implementation details. + +## 12.1 Integration Definition Management + +open-reuse shall allow users to create, store, inspect, update, and version integration definitions. + +The product shall support: + +* Unique integration identity +* Human-readable description +* Upstream source references +* Local repository references +* Reuse mode classification +* Maintainer assignment +* Validation requirements +* Update policies +* Escalation rules +* Lifecycle status + +## 12.2 Integration Registration + +open-reuse shall allow a structured integration definition to be registered with the open-reuse service. + +Registration shall result in: + +* The integration becoming visible in the registry +* The integration being assigned a lifecycle state +* Monitoring being activated according to policy +* Maintainers becoming associated with escalation events +* Validation requirements becoming available to automation + +## 12.3 Reuse Mode Classification + +open-reuse shall support explicit classification of the integration’s reuse mode. + +The classification should help determine: + +* Risk level +* Recommended validation depth +* Update automation eligibility +* Escalation thresholds +* Governance requirements + +## 12.4 Boundary Description + +open-reuse shall allow users to describe the boundary between local system and reused upstream asset. + +The boundary description should include: + +* Boundary type +* Local interface or seam +* Reused upstream surface +* Expected compatibility assumptions +* Known fragility points + +## 12.5 Upstream Monitoring + +open-reuse shall monitor relevant upstream sources. + +Supported upstream signals should include: + +* Releases +* Tags +* Commits +* Dependency metadata +* Changelogs +* Security advisories +* License changes +* Repository archival status +* Breaking-change indicators where available + +## 12.6 Change Impact Analysis + +open-reuse shall classify detected upstream changes according to their likely impact on registered integrations. + +Impact levels may include: + +* No relevant impact +* Informational +* Safe update candidate +* Requires validation +* Requires review +* Blocking change +* Unknown impact + +## 12.7 Update Handling + +open-reuse shall support controlled update handling based on update policies. + +Possible actions include: + +* Record change only +* Trigger validation +* Create update proposal +* Create pull request +* Apply transformation recipe +* Request maintainer review +* Block update +* Escalate issue + +## 12.8 Validation Execution + +open-reuse shall integrate with validation mechanisms capable of proving whether the integration remains acceptable. + +Validation results shall include: + +* Pass/fail status +* Check category +* Execution timestamp +* Upstream version tested +* Local version tested +* Error details where available +* Required maintainer action if applicable + +## 12.9 Escalation Management + +open-reuse shall notify registered maintainers when human inspection is required. + +Escalations shall include: + +* Integration identity +* Upstream change summary +* Impact classification +* Failed checks, if any +* Recommended next action +* Severity +* Due or priority information where configured + +## 12.10 Audit Trail + +open-reuse shall preserve a traceable history of relevant events. + +The audit trail shall include: + +* Integration registration +* Definition changes +* Upstream changes detected +* Impact analysis results +* Validation results +* Update attempts +* Escalations +* Maintainer decisions +* Policy changes + +## 12.11 Dashboard and Reporting + +open-reuse shall provide visibility into the current state of registered integrations. + +The product should expose: + +* Healthy integrations +* Integrations requiring review +* Failed update attempts +* Stale integrations +* High-risk reuse modes +* Unassigned maintainer cases +* Security-sensitive escalations +* Integration drift indicators + +--- + +## 13. User Stories + +## 13.1 Register a Proven Integration + +As an integration maintainer, +I want to register a proven integration with open-reuse, +so that it can be monitored and maintained systematically. + +Acceptance expectations: + +* I can provide upstream source information. +* I can classify the reuse mode. +* I can identify local boundaries. +* I can assign maintainers. +* I can define validation requirements. +* The integration appears in the registry. + +## 13.2 Classify Integration Risk + +As a platform engineer, +I want open-reuse to classify integrations by reuse mode, +so that high-risk reuse patterns can receive stronger validation and governance. + +Acceptance expectations: + +* Each integration has a reuse mode. +* Risk level is visible. +* Missing classification is treated as incomplete. +* High-risk classifications can trigger stricter policy. + +## 13.3 Monitor Upstream Changes + +As an integration maintainer, +I want open-reuse to detect relevant upstream changes, +so that I do not need to manually watch every upstream project. + +Acceptance expectations: + +* Upstream versions are tracked. +* New releases or changes are detected. +* Relevant changes are associated with affected integrations. +* Irrelevant changes can be ignored or classified as informational. + +## 13.4 Validate an Update + +As a maintainer, +I want open-reuse to run validation after upstream change, +so that I can trust whether the integration still works. + +Acceptance expectations: + +* Validation is linked to the integration definition. +* Validation results are recorded. +* Failed validation creates an actionable result. +* Successful validation may allow automated continuation according to policy. + +## 13.5 Escalate a Breaking Change + +As a maintainer, +I want to be notified when automation cannot safely handle a change, +so that I can inspect and resolve the issue before production systems are harmed. + +Acceptance expectations: + +* Escalation includes reason and severity. +* Escalation includes affected integration. +* Escalation includes upstream change context. +* Escalation identifies expected maintainer action. + +## 13.6 Inspect Integration Portfolio + +As a platform owner, +I want to see all registered integrations and their health, +so that I can manage open-source reuse as a portfolio of assets. + +Acceptance expectations: + +* Integrations are searchable. +* Health status is visible. +* Risk classification is visible. +* Stale or failing integrations are highlighted. + +--- + +## 14. Product Requirements + +## 14.1 Integration Definition Requirements + +The product shall provide a structured Integration Definition format. + +The format shall support at least: + +* Integration name +* Description +* Owner or maintainer +* Upstream source +* Local consuming system +* Reuse mode +* Reused surface +* Local boundary +* Current upstream version or reference +* Update policy +* Validation policy +* Escalation policy +* Lifecycle status + +## 14.2 Registry Requirements + +The product shall provide an integration registry. + +The registry shall support: + +* Registering integrations +* Updating integration metadata +* Listing integrations +* Searching integrations +* Filtering by status, owner, reuse mode, and risk level +* Viewing integration details +* Recording lifecycle state + +## 14.3 Monitoring Requirements + +The product shall detect upstream changes relevant to registered integrations. + +The product shall support configurable monitoring policies per integration. + +## 14.4 Policy Requirements + +The product shall allow users to define update and escalation policies. + +Policies shall distinguish between: + +* Safe automatic handling +* Review-required handling +* Blocked handling +* Escalation-required handling + +## 14.5 Validation Requirements + +The product shall connect registered integrations to validation checks. + +Validation must be treated as a gate before updates are considered safe. + +## 14.6 Maintainer Requirements + +The product shall support assignment of maintainers to integrations. + +The product shall notify maintainers when escalation conditions occur. + +## 14.7 Traceability Requirements + +The product shall maintain a historical record of integration lifecycle events. + +Traceability shall be sufficient to answer: + +* What changed upstream? +* Which integration was affected? +* What was attempted automatically? +* What validation ran? +* What failed? +* Who reviewed it? +* What decision was made? + +--- + +## 15. Non-Functional Requirements + +## 15.1 Reliability + +open-reuse shall be reliable enough to serve as a trusted maintenance coordination layer for important integrations. + +It shall avoid silent failures in monitoring, validation, and escalation. + +## 15.2 Transparency + +The product shall make automation decisions inspectable. + +Users should be able to understand why an update was accepted, blocked, or escalated. + +## 15.3 Extensibility + +The product shall support additional reuse modes, validation types, source providers, policy types, and notification channels over time. + +## 15.4 Security + +The product shall handle repository access, automation credentials, maintainer notification paths, and integration metadata securely. + +It shall avoid unnecessary access to source code or secrets. + +## 15.5 Auditability + +The product shall preserve enough historical information to support operational review, compliance review, and post-incident analysis. + +## 15.6 Portability + +The product should not depend on a single source control provider, CI provider, or package ecosystem as a conceptual requirement. + +## 15.7 Human Override + +The product shall allow maintainers to override automation outcomes where policy permits. + +## 15.8 Failure Containment + +The product shall fail safely. + +When it cannot classify, validate, or update confidently, it shall escalate rather than proceed silently. + +--- + +## 16. Lifecycle States + +Registered integrations should support lifecycle states such as: + +| State | Meaning | +| ------------ | ------------------------------------------------------ | +| Draft | Integration definition is being prepared | +| Registered | Integration is known to open-reuse | +| Active | Integration is monitored and maintained | +| Needs Review | Human inspection is required | +| Degraded | Integration has unresolved validation or update issues | +| Paused | Automation is intentionally suspended | +| Deprecated | Integration should be replaced or removed | +| Retired | Integration is no longer active | + +--- + +## 17. Initial MVP Scope + +The MVP should prove that open-reuse can register and maintain a small number of valuable integrations in a structured, inspectable way. + +## 17.1 MVP Capabilities + +The MVP should include: + +1. Integration Definition Schema v0.1 +2. Git-based storage of integration definitions +3. CLI or minimal service for registration +4. Basic registry listing +5. Manual or scheduled upstream version check +6. Reuse mode classification +7. Maintainer assignment +8. Validation command definition +9. Basic validation execution or integration with CI +10. Status reporting +11. Escalation output, at minimum as issue creation or notification +12. Audit log of key lifecycle events + +## 17.2 MVP Reuse Modes + +The MVP should initially support: + +* Dependency reuse +* Adapter reuse +* Component extraction +* Patch overlay + +Plugin reuse and fork continuation may be modeled but do not need full automation in the first MVP. + +## 17.3 MVP Success Scenario + +A team has a working integration with an upstream open-source project. + +They create an open-reuse Integration Definition, register it, configure an upstream version source, define validation commands, and assign maintainers. + +When upstream changes, open-reuse detects the change, records it, triggers validation, and reports whether the integration remains healthy. + +If validation fails, open-reuse creates an escalation for the registered maintainer. + +--- + +## 18. Future Scope + +Future versions may include: + +* Web dashboard +* Deeper source-code impact analysis +* AI-assisted integration analysis +* AI-assisted reuse mode classification +* AI-assisted refactoring recommendations +* Transformation recipes +* Codemod integration +* Semantic API compatibility analysis +* License-change detection +* Security advisory integration +* Pull request generation +* Auto-merge for low-risk updates +* Organizational policy packs +* Integration health scoring +* Multi-repository portfolio analytics +* Integration drift metrics +* Maintainer workload tracking +* Open-source contribution recommendations +* Upstream collaboration workflows + +--- + +## 19. Success Metrics + +open-reuse success should be measured by operational outcomes. + +Potential metrics: + +| Metric | Meaning | +| ----------------------------------- | --------------------------------------------------------- | +| Registered integrations | Number of integrations managed by open-reuse | +| Classified integrations | Percentage with explicit reuse mode | +| Boundary-defined integrations | Percentage with explicit local boundary | +| Automated update checks | Number of upstream checks executed | +| Validation coverage | Percentage with configured validation harness | +| Escalation precision | Percentage of escalations that required real human action | +| Mean time to detect upstream change | Time from upstream change to open-reuse detection | +| Mean time to validate update | Time from detection to validation result | +| Failed silent updates | Should trend toward zero | +| Integration drift | Difference between tracked and current upstream state | +| Maintainer response time | Time from escalation to review | +| Manual maintenance reduction | Reduction in ad-hoc update work | + +--- + +## 20. Risks and Mitigations + +## 20.1 Risk: Scope Becomes Too Broad + +open-reuse could become a generic integration platform, dependency manager, CI system, or security tool. + +Mitigation: + +* Keep focus on post-success integration continuity. +* Integrate with existing tools rather than replacing them. +* Treat Integration Definition as the core product asset. + +## 20.2 Risk: Automation Is Overtrusted + +Users may assume open-reuse can safely resolve all upstream changes. + +Mitigation: + +* Default to escalation for uncertainty. +* Make confidence levels visible. +* Require validation before update acceptance. +* Avoid unsafe auto-merge defaults. + +## 20.3 Risk: Definitions Become Documentation Only + +Integration definitions could become stale if not connected to automation. + +Mitigation: + +* Treat definitions as executable configuration. +* Validate definitions regularly. +* Report stale or incomplete definitions. + +## 20.4 Risk: High Setup Cost + +Teams may resist writing structured integration definitions. + +Mitigation: + +* Provide templates. +* Support incremental adoption. +* Add analysis helpers. +* Allow draft definitions. +* Start with minimal required fields. + +## 20.5 Risk: Hard-to-Classify Integrations + +Real integrations may combine multiple reuse modes. + +Mitigation: + +* Allow composite reuse modes. +* Support primary and secondary classification. +* Permit unknown or transitional states with review. + +## 20.6 Risk: Maintainer Fatigue + +Too many escalations may reduce trust in the system. + +Mitigation: + +* Tune escalation thresholds. +* Group related alerts. +* Distinguish informational events from required actions. +* Improve impact analysis over time. + +--- + +## 21. Assumptions + +The PRD assumes: + +* Integrations are stored or described in version-controlled environments. +* Teams can provide at least minimal validation commands. +* Maintainers can be assigned to integration assets. +* Upstream sources expose detectable change signals. +* The first version may rely on existing CI, source control, and notification systems. +* Fully automated remediation is not required for product value. + +--- + +## 22. Dependencies + +open-reuse may depend on or integrate with: + +* Git repositories +* Source control providers +* CI/CD systems +* Package registries +* Container registries +* Dependency update tools +* Security advisory sources +* License scanning tools +* Issue trackers +* Notification systems +* Code transformation tools +* AI coding or analysis agents + +These dependencies are external capabilities, not necessarily built into open-reuse itself. + +--- + +## 23. Open Questions + +1. Should the first implementation be CLI-first, service-first, or GitHub/GitLab-app-first? +2. Should the Integration Definition Schema be YAML, JSON, CUE, Jsonnet, or another structured format? +3. Should open-reuse maintain its own registry database, or should git remain the source of truth? +4. What is the minimal validation model for MVP? +5. How should maintainers be represented: users, teams, roles, or external identities? +6. Should open-reuse distinguish technical maintainers, business owners, security owners, and legal reviewers? +7. Should integration definitions live in the consuming repository, a central registry repository, or both? +8. How strongly should open-reuse integrate with dependency update tools? +9. How should composite reuse modes be represented? +10. What is the first real-world integration to use as reference case? + +--- + +## 24. Acceptance Criteria for PRD v0.1 + +This PRD is acceptable if it enables the next artifacts to be created: + +* Integration Definition Schema v0.1 +* Functional Requirements Specification +* MVP architecture outline +* Use Case Catalog +* Initial CLI/service design +* Example integration definition +* Repository structure proposal + +--- + +## 25. Product Positioning + +open-reuse occupies the space between: + +* Package management +* CI/CD +* Dependency update automation +* Software composition analysis +* Source control +* Integration architecture +* Maintainer governance + +Its unique position is the structured lifecycle of **valuable reuse under upstream change**. + +The shortest positioning phrase is: + +> **open-reuse starts after “it works” and before “it becomes technical debt.”** + +