PowerContext

Not only memory

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PowerContext is the upgraded version of PowerMem and a context runtime for human-agent collaboration. It turns shared work into project context that can be understood, handed off, and continued.

Core capabilities

Capability	Core value
Memory extraction and management	Explicitly record decisions, constraints, outcomes, state, and next steps worth reusing over time; with a generation model configured, Memory can also be extracted from Sources. Revisions and retirements preserve history
Bounded request-time recall	Before an agent handles a request, generate one schema-validated, cited PreparedContext based on project scope, relevance, and a byte budget; recall failures do not block the original task
Handoff	Organize the objective, verified progress, blockers, next step, and evidence into an inspectable work package so another session, task, model, or agent host can continue from a clear state
Sources and evidence lineage	Preserve the original sources of knowledge and link Memory and Artifacts with exact citations; capturing a prompt creates only a Source and does not directly turn it into Memory
Experience and Skill governance	A model or caller can only submit a Candidate; an immutable revision is created only after Review, and a Skill must still be exported explicitly—it cannot approve, install, or execute itself
Local and service deployment	Use SQLite directly for local development, choose OceanBase for team deployments, and integrate with existing systems through HTTP/OpenAPI, MCP, authentication, and OpenTelemetry

Benchmarks

LoCoMo

Metric	PowerContext	PowerMem	Full-context baseline
Accuracy	90.78% (1,398/1,540)	87.79%	52.9%
Search p95 latency	1.38 s	1.44 s	17.12 s
Answer tokens per question	~1.65k	~0.9k	26k

The PowerContext result covers all 1,540 scored questions across the benchmark's 10 conversations. See the LoCoMo evaluation details for dataset selection, retrieval, judging, latency, token, and Artifact boundaries.

SWE-bench Pro public v2

In a paired evaluation over all 731 tasks in SWE-bench Pro public v2, enabling PowerContext increased the task resolution rate from 82.35% to 86.73%, an improvement of 4.38 percentage points.

The evaluation ran in a Codex environment, with both the PowerContext OFF and ON groups using the gpt-5.6-sol model.

Result	PowerContext OFF	PowerContext ON	Change
Resolved tasks	602 / 731	634 / 731	+32
Resolution rate	82.35%	86.73%	+4.38 percentage points

SWE-bench Pro public v2 evaluation details.

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Plugins

PowerContext provides official plugins and installation guides for Codex, Claude Code, and DeepSeek Harness. All three integrations use the same scoped data and history-preserving contracts through PowerContext Server; the plugins do not start or embed the Server.

Official integrations

Codex

Claude Code

DeepSeek Harness

Quick start

You need macOS or Linux, Python 3.11 or newer, uv, and Codex CLI.

1. Install PowerContext and the plugins

uv tool install "powercontext[cli,server]==0.0.2"

# Choose one or more integrations.
powercontext setup codex --source oceanbase/powercontext --ref v0.0.2
powercontext setup claude-code --source oceanbase/powercontext --ref v0.0.2
powercontext setup dsh --source oceanbase/powercontext --ref v0.0.2

The first command installs the CLI and local Server in an isolated environment. The subsequent setup commands install the corresponding plugins from the matching repository tag. Run setup again to refresh an existing installation.

2. Start and verify the local Server

Keep the Server running in one terminal:

powercontext server run

In another terminal, verify the service and plugin:

powercontext doctor
powercontext doctor codex  # or: claude-code / dsh

By default, the Server listens on 127.0.0.1:8000, exposes Streamable HTTP MCP at /mcp, and persists data in a local SQLite database. Explicit Memory operations work without configuring an inference provider.

Development

Install the locked development environment and hooks:

make install

Run the main validation commands before opening a pull request:

make check
make test
make docs-test

After changing openapi/powercontext.yaml, run make contract-test. See CONTRIBUTING.md for the complete workflow and docs/en/development/ for implementation guides.

Community

Questions and feedback are welcome in Discord. Use GitHub Issues for reproducible defects and focused feature requests.

License

PowerContext is licensed under the Apache License 2.0.