## Thinking Path
> - Paperclip is the open source app people use to manage AI agents for
work.
> - Local CLI adapters are responsible for starting agent runtimes and
validating that their configured models are usable before a run starts.
> - The OpenCode local adapter checks `opencode models` during model
discovery and preflight validation.
> - On hosts with a shared Ollama daemon, that lightweight metadata call
can transiently queue behind an active generation and time out or return
a short failure.
> - Treating that transient contention as a hard adapter failure
prevents otherwise valid local OpenCode runs from starting.
> - This pull request adds a small bounded retry/backoff around OpenCode
model discovery while keeping the existing per-attempt timeout and
surfacing a final failure when retries are exhausted.
> - The benefit is fewer false adapter failures during local Ollama
contention without changing shared Ollama configuration or hiding
genuinely stuck model discovery.
## Linked Issues or Issue Description
No public GitHub issue exists for this adapter reliability bug.
Bug description:
- What happened: `opencode models` can transiently time out or fail
while a shared local Ollama daemon is busy serving another OpenCode
generation, causing the adapter preflight to fail before the actual run
starts.
- Expected behavior: transient model-list contention should be retried
briefly before declaring the adapter unavailable.
- Steps to reproduce: run an OpenCode local adapter using an
Ollama-backed model while another `opencode run` is actively generating
against the same daemon, then trigger model discovery/preflight during
that contention window.
- Paperclip version/commit: observed on the current Paperclip
master-line OpenCode local adapter before this change.
- Deployment mode: local trusted / local CLI adapter execution with a
shared local Ollama daemon.
Related search:
- Searched public GitHub issues for `opencode models preflight retry`;
no matching issue found.
- Searched public GitHub PRs for `opencode models preflight retry`; no
matching PR found. The only search hit was unrelated OpenClaw gateway
authentication work (#6121).
## What Changed
- Added bounded retry/backoff to OpenCode model discovery: three total
attempts with 2s and 4s waits between failures.
- Preserved the existing 20s per-attempt `opencode models` timeout.
- Retry covers timeout and non-zero process exits, while spawn-level
failures still surface immediately.
- Added unit coverage for transient fail -> timeout -> success behavior
and exhausted retry behavior.
- Updated existing OpenCode environment diagnostic tests with explicit
timeouts for the intentional retry/backoff path.
## Verification
- `pnpm --filter @paperclipai/adapter-opencode-local exec vitest run
src/server/models.test.ts src/server/execute.test.ts` -> 2 files passed,
13 tests passed.
- `pnpm --filter @paperclipai/adapter-opencode-local typecheck` ->
passed.
- `pnpm vitest run
server/src/__tests__/opencode-local-adapter-environment.test.ts` -> 1
file passed, 3 tests passed.
- Branch diff against current `upstream/master` is limited to
`packages/adapters/opencode-local/src/server/models.ts`,
`packages/adapters/opencode-local/src/server/models.test.ts`, and
`server/src/__tests__/opencode-local-adapter-environment.test.ts`.
## Risks
Low risk. This only changes OpenCode model discovery behavior and keeps
the preflight bounded. A genuinely unavailable `opencode models` call
still fails after three attempts, and command spawn failures are not
masked.
## Model Used
OpenAI Codex, GPT-5.5 coding agent, tool-enabled repository editing and
shell verification in a local Paperclip workspace.
## 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: Test <test@paperclip.ing>
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