## Thinking Path > - Paperclip is the open source app people use to manage AI agents for work. > - The Legacy OpenCode adapter runs an agent and its shell tools in the same sandbox. > - A large build can exceed the sandbox memory limit and trigger a kernel OOM kill. > - The kernel can kill OpenCode before its tool, which loses the active turn. > - OpenCode provides a shell environment hook that can change only the tool subprocess. > - This pull request uses that hook to prefer Bash tool processes as OOM victims. > - The benefit is that OpenCode can report a failed tool and continue the task. ## Linked Issues or Issue Description **What happened?** An OpenCode sandbox run ended with exit 137 after a TypeScript process had also been killed. Its cgroup limit was 4 GiB. It had completed useful tool work and had not reached its execution deadline. The original sandbox was deleted, so its historical OOM counters are unavailable. Memory pressure is the leading explanation, not a proven historical kernel diagnosis. **Expected behavior** When a shell tool exhausts sandbox memory, the kernel should prefer that tool over OpenCode where possible. The adapter must preserve configured shell startup, model, permissions and resource limits. **Steps to reproduce** Use a disposable 4 GiB Linux sandbox with OpenCode. Retain a 1,200 MiB buffer in the agent and run a Bash tool with fourteen 250 MiB workers. Compare the same workload before and after installing the generated hook. Record the cgroup memory events, agent exit and final response. Refs: #16844. That PR covers the same protection for Claude. This PR adds the OpenCode-owned hook. Refs: #17254 for the separate shutdown recovery path. This PR does not change retry policy. ## What Changed - Generate a dependency-free OpenCode `shell.env` plugin and a Bash startup file in the isolated runtime config. - Stage those assets only for sandbox execution. Resolve the startup file relative to the copied plugin. - Set child `oom_score_adj` to `1000` on Linux. Keep the parent environment unchanged and honor existing `BASH_ENV` values, including an empty value. - Keep command execution available if the optional plugin cannot be installed or the process priority cannot be changed. - Materialize linked plugin directories inside the isolated config before writing. Keep the operator directory and its plugins unchanged. - Cover relocation, shell output and exit status, operator settings, local execution, remote staging and failed installation. Update the adapter documentation and verification recipe. ## Verification - Red before the fix: the new runtime regression failed because the sandbox shell plugin was absent. The existing 15 runtime config tests passed. The same regression passes with the fix. - Apex first found a host-write risk through linked plugins directories (4/5). A new regression reproduced the host directory modification, then passed after the installer materialized the copied link. The finding is resolved. Apex reviewed current head `df82a8f51725a197c0ea3ebeb942488509f32b34` at 5/5 with no actionable issues remaining. - The full OpenCode adapter suite passes: 87 source tests. The adapter typecheck and map checks pass. - Real sandbox acceptance used the plugin generated from `df82a8f51725a197c0ea3ebeb942488509f32b34` and OpenCode 1.18.34 in a disposable 4 GiB Daytona sandbox. A controlled local model endpoint issued an actual Bash tool call; no real model credentials were used. The tool reported priority `1000`; the parent reported `0`. - Controlled OOM comparison: without the guard, OpenCode was killed by SIGKILL after 8.95 seconds and the cgroup recorded one OOM kill. With the guard, five workers were killed, OpenCode exited `0` after 21.87 seconds, and its final response was `fixture-complete`. The cgroup counter increased by five. Both attempts used the same allocation and workload. The fixture started with a linked operator plugins directory. The installer preserved that directory, staged a real plugins directory, and passed both the process-priority probe and OOM comparison. The fixture allocation was deleted afterward. - The first live probe was not accepted because the harness could not parse the provider response framing. After correcting the decoder, the unchanged plugin passed the probe and the controlled OOM comparison. Both initial disposable allocations were deleted. After the review fix, a third allocation repeated the probe and OOM comparison with a linked plugins directory. That allocation was also deleted. The initial comparison had the same agent-killed/agent-survived result (8.42 seconds without the guard; 19.42 seconds with it). - Repository `pnpm -r typecheck` and `pnpm build` pass. The full CI matrix passes on `df82a8f51725a197c0ea3ebeb942488509f32b34`, including tests, browser shards, Runner checks, build, policy and Apex. [CI run](https://github.com/paperclipai/paperclip/actions/runs/40043947375). - The first full local test attempt had 15 embedded PostgreSQL startup failures. Direct `initdb --version` and `postgres --version` probes showed missing bundled library symlinks and SIGABRT. Running the bundled symlink hydration script restored both executables. All 15 affected cases pass after that setup repair. No product code changed for it. - Two existing workspace tests assumed that new Git repositories have no `main` branch. They failed under the host default branch setting of `main`, then passed with a per-command `init.defaultBranch=master` setting. The global setting was preserved. The full local test command was restarted with hydrated libraries and that controlled fixture default. It had no reported assertion failures when it was stopped after the complete CI matrix passed. It did not complete locally; full-suite verification comes from CI. The first failed invocation was also stopped. - The original tenant task has not been retried or recovered by this PR. Its board API credential is expired. The original hosted workflow and the separate shutdown recovery remain outside this acceptance result. ## Risks - This is a preference, not a memory reservation. It cannot guarantee that OpenCode survives every OOM condition, including memory growth inside OpenCode itself. - The guard applies to non-interactive Bash tools. Other shells ignore `BASH_ENV`. Existing operator startup settings take precedence. - Older OpenCode releases without the shell environment hook will not apply the preference. No model, permission, deadline, memory quota or retry limit changes. - No schema change or migration. ## Model Used OpenAI GPT-6 through Codex, with repository tools and code execution. The exact deployment variant and context window are not exposed by this session. ## 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>
Paperclip maps
The maps describe the same capabilities from two perspectives:
- Feature map: what a person can do, where to reach it, and how to verify the user journey. Preserve its Poteto format.
- Agent access map: the APIs and agent entry points for those capabilities, their permission boundaries, and access verification.
These are sibling directories under maps/. Each feature file has a same-named
agent access companion. Reuse the product map's sub-feature IDs, so tasks/create
identifies the same capability in both maps. Product behavior remains governed by
the implementation spec; a map cannot grant
authority or redefine a permission denial as success.
Capability identifiers
The feature ID is the recipe filename without .md, such as onboarding.
The full capability ID joins that feature ID and a Sub-features key with /:
the company key in feature-map/onboarding.md is onboarding/company.
Its agent-access-map/onboarding.md companion uses the same local company key.
The feature-map index lists the existing
feature and full capability IDs.
Each child page states Feature ID: `onboarding`. after its introduction or
product-map link. In feature recipes, show the full ID beside the parsed local
key: - `company`: `onboarding/company` — create a company. In access
companions and Storybook verification guidance, keep the existing local heading
and put Capability ID: `onboarding/company`. beneath it. These labels make
the existing identifiers visible without changing keys, anchors, or ID generation.
Use full capability IDs in cross-feature references, Storybook annotations, tests, issues, PRs, and verification evidence. Both segments use lowercase letters, digits, and hyphens. Keep filenames and keys stable when display titles or navigation labels change; renaming either changes the capability ID.
Entry-point IDs describe a surface, such as web-wizard, and are scoped to their
recipe. Reference them with a recipe link, such as
onboarding.md#web-wizard, and record the
capability exercised separately. Navigation section labels are not capability IDs.
See IDs and references for examples.
Access contract
Every business operation needs both an API and a usable agent entry point for an
actor authorized to perform it. A dedicated tool is optional when REST, the CLI,
an assigned MCP client, or native search_api / call_api already provides the
operation. Record which agent surfaces actually have that path; an installed CLI
or optional MCP package cannot be assumed available to every native/remote run.
Track these independently:
| Dimension | Values and meaning |
|---|---|
| API | present, missing, not-applicable, or unreviewed. Use exact methods/paths; distinguish protocols from REST. |
| Agent access | available, partial, missing, restricted, operator-only, not-applicable, or unreviewed. Name the supported surface and actual entry point. |
| Policy | Actor, action/grant, company/resource/ownership scope, responsible-user intersection, run requirements, work modes, and gates relevant to the operation. |
| Evidence | source-only, verified, failed, blocked, or not-run. Source presence and successful board calls are not agent verification. |
| Review depth | baseline records representative operations and known gaps; operation-reviewed enumerates the capability's meaningful operations and their individual access contracts. |
Broad capabilities such as task properties must be split into operations before they count as operation-reviewed: renaming, metadata edits, assignment, dependencies, and lifecycle changes can use different tools and permission rules. An available read path cannot certify a write path. List/get/create/update/delete, execution/control, credential handling, and resolution are separate where their authority or transport differs. Do not duplicate request schemas from OpenAPI.
Exceptions and restrictions
Presentation-only state, static developer fixtures, and pre-start/local operator
work may use not-applicable for a domain API, with a concrete reason and the
existing local path. When a capability combines shared data with presentation,
split the operations: browser recents do not exempt resource lookup from API
coverage. Promoting local state to a shared feature requires revisiting the entry.
A board-only endpoint is restricted for agent identity, not an automatic
exception or a missing API. Cite the enforced policy and record whether the
agent can request the authorized human's action and observe its result. An
unresolved delegation question remains in Gaps. Company access, a job title,
a personal assistant's OAuth grant, or an accepted interaction does not grant
board identity. Keep budget, approval, secret and execution authority intact.
Check actual route/service authorization and production tool admission. OpenAPI actor labels and scenario/evaluation tool declarations are supporting metadata; record disagreements rather than using them as proof of access. Native API fallback restrictions, tool field/scope limits, and rollout settings are part of the agent path, even when a legacy agent can call the REST endpoint directly.
Companion file format
Each agent-access-map/<area>.md has an H1, a relative link to its product file,
and its feature ID, followed by one H2 backticked local key per product
sub-feature. Each capability starts with its full capability ID and contains
these fields:
- Review:
baselineoroperation-reviewed. - API: presence state and exact operation IDs, or a reasoned exception.
- Agent access: availability state and concrete entry points by surface.
- Policy: relevant permission and runtime boundaries, with source references.
- Evidence: evidence state, reviewed commit and sources or executed proof.
- Verification: allowed/denied assertions and observable result; record what has actually run separately from the proposed recipe.
- Gaps: missing APIs/paths, discovery drift, unreviewed operations or policy
decisions; use
noneonly for the enumerated scope that was reviewed.
For an operation-reviewed capability, use H3 backticked operation IDs and repeat
API, Agent access, Policy, Evidence, Verification and Gaps for each operation.
Use small operation names such as create, update, read, or run-now.
The enclosing capability has Review: operation-reviewed only after its
meaningful operations have been enumerated. The following excerpt shows one
operation; include the others before using that review label:
## `definition`
Review: `operation-reviewed`.
### `create`
API: `present` — POST /api/companies/{companyId}/routines.
Agent access: `available` — agent REST, CLI routine create and native call_api
under the enabled rollout and active-run/mode gates.
Policy: same company; assigneeAgentId must be the calling agent; cite the
routine authorization and native API policy sources.
Evidence: `source-only` — reviewed commit and source links; no live proof.
Verification: `not-run` — create an owned routine; reject assignment to another
agent; inspect saved configuration, attribution and retry behavior.
Gaps: verify ownership and responsible-user resolution with a permitted agent
context; source presence alone does not qualify this operation.
Keeping the maps synchronized
When a change adds/removes a capability or changes its behavior, API, permission, tool binding, CLI support, or work mode, update the affected companion and product recipe as appropriate in the same change. Preserve IDs across renames where the capability is unchanged; update the affected cross-links together. Indexes discover recipes automatically. An API-only change may update the companion without rewriting unchanged user instructions.
maintain-verification-skill owns reconciliation of both maps. It follows changed source and authorization, checks real agent reachability, and records product gaps without implementing them during a maintenance pass. The creation skill uses this structure. verify-paperclip consumes the relevant recipes and reports evidence/drift; map editing belongs to maintenance.
Run the structural check after map changes:
node scripts/check-maps.mjs
It checks paired areas/IDs, navigation metadata, required fields, and local references. It does not certify endpoint authorization, production bindings, operation completeness, or live behavior. Source audits must check those against the existing API and tool contracts; avoid a second schema catalog or runtime.
For live access proof, use Paperclip's existing API/runner/MCP fixtures or an owned
isolated instance. Use the actual agent identity, target and work mode. Assert the
allowed result and relevant denial (another company/private resource, wrong
owner, missing grant, invalid run, restricted mode or resolver). Mutations also
need persisted state/attribution and retry behavior. Capture evidence using the
existing artifact workflow; keep executed run results
separate from generated maps/generated/coverage.json, which lists page references.
Local authorship and generated indexes
Change only the recipes, access contracts and stories whose behavior or intent
changed. Feature recipes own navigation metadata; stories own small
parameters.paperclip annotations. Keep the feature-map README's readable ID
index aligned with those sources; it does not register entries for generation.
Do not refresh counts in shared READMEs, inventories, fingerprints or review
journals.
node scripts/storybook-catalog.mjs validates and generates aggregate navigation,
Storybook data, verification routes and the page inventory. All outputs live in
ignored maps/generated/, ui/storybook/generated/, and the ignored Storybook
preview.tsx wrapper. Start/build and UI typechecking generate their own inputs.
A clean merged checkout therefore assembles both branches' changes automatically.
Git provides history and diffs. PRs, issues and CI artifacts retain review/run evidence for the named revision. Capability associations do not create whole-file review dependencies. Keep durable scenario limits in the affected recipe or story.