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DottaandPaperclip
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## Thinking Path > - Paperclip manages agents and their work. > - Paperclip Runner starts OpenCode with the selected provider and model. > - The native OpenRouter route passed the reusable upstream key into the child environment. > - A persisted-state scan found that key in an OpenCode database WAL. The exact write operation is not known. > - This pull request reuses the existing parent-held provider proxy for that route. > - The child receives a temporary loopback credential instead of the upstream key. ## Linked Issues or Issue Description **What happened?** The native OpenRouter path passed `OPENROUTER_API_KEY` into the OpenCode child. A real Product E2E persisted-state scan detected the key in the child database WAL. The scan does not establish which operation wrote it. **Expected behavior** The runner keeps the reusable upstream key in its own process. OpenCode can call only the selected model through the session proxy. **Steps to reproduce** 1. Start the OpenCode driver with an explicit or ambient synthetic OpenRouter key. 2. Inspect the fake child configuration, environment, and persisted provider values. 3. Send a request through the real loopback proxy and verify the upstream authorization and exact model. **Paperclip version or commit** The regression is present on merged master `813e808af462b6a6f9db38b6791e3bfe8465b51e`. This PR is rebased onto merged master `d40f9ac377`. **Deployment mode** Built from source. The finding came from an AWS Product E2E job. The regression tests use local synthetic servers and a fake child, with no provider calls. Related issue search found #16643 about general inherited environment scope. This change addresses the narrower native OpenRouter path. No duplicate custody PR was found. This PR must remain unmerged until separately approved; it does not change the eval baseline or qualify a new live result. ## What Changed - Reuse the existing parent-held proxy for native `openrouter/` models. - Remove the upstream key from the child environment and retain it in diagnostic redaction. - Keep the selected provider and exact model. Reject alternate-routing fields before the upstream request. Use a session-lived loopback token. - Preserve the effective explicit or ambient proxy bypass list when adding loopback entries. - Add explicit and ambient key regressions, upstream routing checks, and child persistence checks. - Document the boundary and its limits. ## Verification - Final rebased head: full OpenCode driver suite, 64 synthetic tests passed, and runner source TypeScript check passed. Original author run had 61 passing tests before the new master tests. - The two new explicit and ambient regressions fail on the old implementation. - Independent source review passed. The two new synthetic regressions also passed independently. A separately filtered legacy pair hit fixture selection/chmod ordering and is not claimed as a passing run. - Tests use the real driver and proxy with a fake OpenCode child and synthetic upstream transport. They check key exclusion, exact URL/model/authentication, wrong-model and alternate-routing rejection, proxy bypass preservation, redirect rejection, and proxy shutdown. - The two advisory regressions failed before the correction: fallback routing reached upstream, and ambient NO_PROXY was lost. The full 64-test driver suite and source TypeScript check pass after the correction. - No real OpenCode SDK/provider qualification was run. The original WAL write mechanism remains unknown. - Repo-wide typecheck, test:run, and build were not run locally because local native/DB/model execution is excluded. Normal PR CI passed on head `3e1903272ce65b92055ea70f8dc586d9aa5e0205`: typecheck/release registry, general and serialized suites, runner static/Rust/Vitest checks, E2E shards, build, and canary dry run. Greptile is 5/5 on that head. Paperclip Review is neutral with no blocking findings; its two earlier findings are fixed and resolved. ## Risks The native OpenRouter route now uses the existing OpenAI-compatible proxy transport. Synthetic tests do not prove every live SDK response shape. The loopback token remains a credential, is redacted, and expires with the session. This change does not claim isolation of every child secret or persisted value. ## Model Used OpenAI GPT-6.1 Sol (`gpt-6.1-sol`) assisted source investigation, implementation, synthetic tests, and review with tool use. No provider model call was used for verification. ## Checklist - [x] I have included a thinking path that traces from project context to this change - [x] I have specified the model used (with version and capability details) - [x] I have checked ROADMAP.md and confirmed this PR does not duplicate planned core work - [x] I have searched GitHub for duplicate or related PRs and linked them above - [x] I have either (a) linked existing issues with `Fixes: #` / `Closes #` / `Refs #` OR (b) described the issue in-PR following the relevant issue template - [x] I have not referenced internal/instance-local Paperclip issues or links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip` URLs) - [x] My branch name describes the change (e.g. `docs/...`, `fix/...`) and contains no internal Paperclip ticket id or instance-derived details - [x] I have run tests locally and they pass - [x] I have added or updated tests where applicable - [x] I have updated relevant documentation to reflect my changes - [x] I have considered and documented any risks above - [x] All Paperclip CI gates are green - [x] Greptile is 5/5 with no open P2s, recommendations, or follow-ups - [x] I will address all Greptile and reviewer comments before requesting merge --------- Co-authored-by: Paperclip <noreply@paperclip.ing>