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bump prime-agent to v0.9.1 - #2502

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bump/prime-agent-v0.9.1
Sep 2, 2026
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bump prime-agent to v0.9.1#2502
hallerite merged 2 commits into
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bump/prime-agent-v0.9.1

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@sethkarten

@sethkarten sethkarten commented Sep 2, 2026

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Minimal version bump (+8/-8 lines):

  • PRIME_AGENT_VERSION: "0.8.1""0.9.1"
  • PRIME_AGENT_COMMIT: SHA updated to 81ae3cb34d27d38ee37f9e205a1e73694993b344 (v0.9.1 release tag)
  • SHA256 checksums for all four release tarballs updated to v0.9.1 values

Verified by downloading all four tarballs from GitHub releases and computing SHA256 locally.


Note

Low Risk
Dependency pin and install checksum updates only; behavior changes come from the external prime-agent v0.9.1 release, not from harness logic edits.

Overview
Bumps the Prime Agent harness from 0.8.1 to 0.9.1 so verifier runs install and execute the newer release.

The pinned commit (PRIME_AGENT_COMMIT) and PrimeAgentHarnessConfig.commit Literal default move to 81ae3cb34d27d38ee37f9e205a1e73694993b344. The embedded install script’s SHA256 checksums for the four release tarballs (prime-agent, prime-agent-ai, prime-agent-core, prime-agent-tui) are updated to match v0.9.1 artifacts downloaded from GitHub releases.

Reviewed by Cursor Bugbot for commit 3119b16. Bugbot is set up for automated code reviews on this repo. Configure here.

Note

Bump PrimeAgentHarnessConfig to Prime Agent v0.9.1

Updates the pinned Prime Agent commit to 81ae3cb34d27d38ee37f9e205a1e73694993b344 and release version from 0.8.1 to 0.9.1 in harness.py. Replaces SHA-256 checksums for the agent, AI, core, and TUI release tarballs to match the new artifacts.

Macroscope summarized 3119b16.

@sethkarten
sethkarten force-pushed the bump/prime-agent-v0.9.1 branch from df4e5af to c649037 Compare September 2, 2026 04:42
Comment thread verifiers/v1/harnesses/prime_agent/harness.py

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

Fix All in Cursor

❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, enable autofix in the Cursor dashboard.

Reviewed by Cursor Bugbot for commit c649037. Configure here.

Comment thread verifiers/v1/harnesses/prime_agent/harness.py
@macroscopeapp

macroscopeapp Bot commented Sep 2, 2026

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Approvability

Verdict: Not approved

Macroscope's review found this PR not approvable — Although the repository diff only updates a Prime Agent version, commit, and checksums, the pinned upstream release contains substantial runtime and protocol changes, including a kernel/runtime replacement and worker lifecycle updates. The existing Prime Agent execution path will adopt those changes by default, so the upgrade merits human review.

You can add or adjust custom eligibility rules. Learn more.

@hallerite
hallerite merged commit f2c39c4 into main Sep 2, 2026
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@hallerite
hallerite deleted the bump/prime-agent-v0.9.1 branch September 2, 2026 08:46
xeophon pushed a commit that referenced this pull request Sep 2, 2026
Stacked on #2505#2503#2496.

Every third-party harness installed its program with the same routine:
`mkdir -p <dir>`, take a lock on `<dir>/install.lock`, run `[ ready ] ||
( install )`, raise `RuntimeError("<name> install failed: " +
stderr[-500:])`. Nine copies, and they had drifted into three different
locks:

| lock | harnesses |
|---|---|
| `"$(command -v flock \|\| command -v lockf)"` | claude_code, codex,
kimi_code, openclaw, pool, prime_agent |
| hand-rolled symlink spinlock with dead-owner check + `EXIT` trap | pi,
`node.py` (shared Node install) |
| bare `flock` | rlm |

Around it: the `version: str = Field(default=..., pattern=...)` field
nine times, and an `rm -rf` + raise cleanup six times.

**After this PR**
- `harnesses/utils/install.py`: `ensure_installed(runtime, directory=,
install=, env=, label=, ready=None, lock=None, shell=("sh","-c"))` and
`remove_dir(runtime, path, label)`. `ready` is the optional skip test
(openclaw passes none: its `SETUP` script from #2485 self-guards and
must always run the transcript patch), `lock` lets the Node installer
keep its lock beside the directory it replaces, `shell` lets pool and
openclaw keep `bash -o pipefail`. Directory and lock paths are
`shlex.quote`d, as #2485 started doing for openclaw.
- `configs/harness.py`: `PinnedVersion = Annotated[str,
Field(pattern=r"^[A-Za-z0-9._+-]+$")]`; the nine configs declare
`version: PinnedVersion = "<default>"` and keep their own docstrings.
rlm keeps its git-ref field.
- claude_code, codex, kimi_code, pool, openclaw, prime_agent, pi, rlm
and `ensure_node` install through the helper; claude_code, codex,
openclaw, prime_agent and hermes_agent clean up through it.
hermes_agent, terminus_2 and mini_swe_agent install via
`prepare_uv_script` and only pick up `PinnedVersion`.

**Intended behaviour changes** (all in the lock and error path, none in
install scripts):
1. Every harness locks with `flock || lockf` when one is present (they
release on holder death natively; every common base image ships one,
Alpine via busybox) and falls back to the symlink spinlock that pi and
the Node installer used before when neither is. The fallback records its
owner as `pid:starttime` (from `/proc`, pid alone where unreadable) so a
reused pid is not mistaken for the live holder, and reaps a lock that is
a regular file or whose owner is gone; the original spinlock spun
forever on a regular lock file because `kill -0 ""` succeeds under
busybox ash, and would wait on a reused pid until that process exited
(e19f2c8).
2. rlm gains the lockf fallback it lacked.
3. Install failures report stdout when stderr is empty or
whitespace-only (three harnesses already did the former). Cleanup
failures share one phrasing, `failed to clean up <label>: …`.
4. `mkdir -p /var/tmp/vf-node` now precedes the Node install; its script
creates the directory itself anyway.

Rebased onto main after #2496 merged; the OpenClaw 2.0 (#2485), RLM
(#2507) and prime-agent (#2502) changes on main are preserved.

**Verification.** I replayed `setup()` and `cleanup()` for all nine
harnesses plus `ensure_node` against a recording fake runtime on the
base branch and this branch and diffed every command and environment.
Against the rebased base, 17 of 23 replays are byte-identical (openclaw
included, since #2485 already uses `flock || lockf`); the six that
differ (the four Node installs, pi, rlm) differ only in the lock prefix
and are identical from `sh -c` onward. `PinnedVersion` rejects `""`,
`"a/b"` and `"bad version!"` and accepts `"0.147.0"`. Also `ruff check`,
`ruff format --check`, `ty check verifiers`, `pytest tests/v1 -m "not
e2e"` (82 passed). Both lock branches were exercised on `alpine:latest`:
two concurrent installs serialize, the install's exit code propagates, a
dead-owner symlink, a leftover regular lock file and a live process
holding a lock with a stale identity (pid reuse) are reaped, a live
owner with its true identity is waited on (a4f4ea5). The docker e2e
job runs on this PR as well.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

<!-- Macroscope's pull request summary starts here -->
<!-- Macroscope will only edit the content between these invisible
markers, and the markers themselves will not be visible in the GitHub
rendered markdown. -->
<!-- If you delete either of the start / end markers from your PR's
description, Macroscope will append its summary at the bottom of the
description. -->
> [!NOTE]
> ### Consolidate harness install-lock and cleanup into shared helpers
> - Adds `ensure_installed` and `remove_dir` to
[install.py](https://github.com/PrimeIntellect-ai/verifiers/pull/2506/files#diff-5ddaf01b8cbb0ded4d3d42b42549b45ad9866136f071e72e14cde15c105d8417);
`ensure_installed` handles directory creation, optional readiness
checks, `flock`/`lockf` serialization with a PID/start-time symlink
fallback, stale-owner cleanup, and label-specific errors.
> - Adds a shared `PinnedVersion` type alias in
[harness.py](https://github.com/PrimeIntellect-ai/verifiers/pull/2506/files#diff-c5b409466f272f39cbab9228a91d9b6de6c8a0cdd33ad73f05e7fd690966e478)
and replaces inline version field declarations across all harness config
classes.
> - Migrates `setup` installers and `cleanup` handlers in the Claude
Code, Codex, Hermes, Kimi Code, Node, OpenClaw, Pi, Pool, Prime Agent,
and RLM harnesses to the shared helpers, passing through their existing
scripts, environments, and labels.
> - Risk: all harnesses now share one locking and removal
implementation; verify per-harness lock paths and readiness conditions
passed to `ensure_installed`, especially `ensure_node` in
[node.py](https://github.com/PrimeIntellect-ai/verifiers/pull/2506/files#diff-4117aae0a7b4023c32f09206611f0bf2149b2a51e264157bd24339df2166dfa8)
where the lock lives outside the installed directory.
>
> <!-- Macroscope's review summary starts here -->
>
> <sup><a href="https://app.macroscope.com">Macroscope</a> summarized
93a2100.</sup>
> <!-- Macroscope's review summary ends here -->
>
<!-- Macroscope's pull request summary ends here -->

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Medium Risk**
> All harness program installs and several cleanups now share one
locking and error path; lock location and readiness checks (especially
Node’s external lock) affect every concurrent rollout on a shared
runtime.
> 
> **Overview**
> Introduces **`ensure_installed`** and **`remove_dir`** in
`harnesses/utils/install.py` and routes harness `setup`/`cleanup`
through them instead of nine copy-pasted `mkdir`, lock, `[ ready ] ||
install`, and `rm -rf` blocks.
> 
> **`ensure_installed`** centralizes concurrent install serialization
(`flock` / `lockf`, with an improved symlink spinlock fallback using
`pid:starttime`), optional readiness skips, configurable shell (`bash -o
pipefail` where needed), and consistent install failure messages (stderr
or stdout). **`remove_dir`** standardizes cleanup errors as `failed to
clean up <label>: …`.
> 
> Harness configs that pin npm/release versions now use shared
**`PinnedVersion`** in `configs/harness.py` instead of repeated
`Field(..., pattern=...)` declarations (RLM keeps its git-ref field).
> 
> Migrated installers: Claude Code, Codex, Kimi Code, Pool, OpenClaw,
Prime Agent, Pi, RLM, and shared **`ensure_node`**. Cleanup via
**`remove_dir`**: Claude Code, Codex, Hermes, OpenClaw, Prime Agent
(plus OpenClaw staged-skills clear). Hermes, mini-swe-agent, and
Terminus 2 only pick up **`PinnedVersion`**.
> 
> <sup>Reviewed by [Cursor Bugbot](https://cursor.com/bugbot) for commit
93a2100. Bugbot is set up for automated
code reviews on this repo. Configure
[here](https://www.cursor.com/dashboard/bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

---------

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>
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