Agent Memory System

Local-first, evidence-backed memory for coding agents.

Agent Memory System preserves the task evidence a runtime exposes, rebuilds it into episodes, turns supported observations into reviewable memory candidates, and shares only redacted memories with explicit validation and promotion records through a separate private Git repository. Deployment policy requires an operator to make those decisions; the software binds each attestation to the evidence but does not authenticate that the caller is human.

It is built for a harder question than “what should the agent remember?”:

What evidence supports this memory, is it still current, and can another machine use it without receiving the private transcript?

Version 0.3.0 adds immutable memory loadouts, evidence-bound review packets, replay-verifiable local Codex execution receipts, prospective longitudinal study records, and a loopback-only read-only dashboard to the storage, derivation, review, private Git, retrieval, recovery, and evaluation foundation. Runtime adapters remain version-sensitive. The system fails closed when evidence is incomplete or a compatibility claim cannot be verified.

Why this is different

Most memory tools summarize a conversation and place the summary in a retrieval index. This project separates evidence, judgment, and distribution:

flowchart LR
    A["Agent-local traces"] --> B["Append-only evidence ledger"]
    B --> C["Episodes and compaction checks"]
    C --> D["Candidate memories"]
    D --> E["Validation attestation"]
    E --> F["Promote, supersede, or revoke"]
    F --> G["Private Git memory repository"]
    G --> H["Bounded cross-agent retrieval"]
    H --> I["Immutable memory loadouts"]
    I --> J["Native receipts and prospective studies"]

Raw transcripts, tool output, exposed reasoning, and local paths remain in the local evidence store. Git receives only the portable projection of an approved memory. A private repository is not treated as permission to upload raw task history.

Core guarantees

• Exact source bytes are content-addressed before normalization.
• Every evidence record participates in an append-only SHA-256 chain.
• A cross-process writer lock prevents compliant writers from forking a store.
• Missing, truncated, opaque, or unavailable data becomes an explicit gap.
• Candidates cannot become portable memory without a validation attestation and a separate promotion attestation, each bound to the exact evidence state.
• Conflicting candidates are quarantined; cross-device semantic conflicts are reported instead of resolved with last-write-wins.
• Reviewer and approver identifiers are caller-supplied attestations. Operator policy requires a person to inspect the evidence, but the CLI does not authenticate a human identity.
• Active memories form immutable revision chains with explicit supersession and revocation.
• Retrieval verifies the complete portable repository, applies exact scope and result limits plus estimated-token and UTF-8 byte budgets, and records what was delivered.
• A memory loadout names exact active revision heads. Supersession or revocation makes the old loadout stale instead of silently substituting new content. Loadout-backed native execution holds the portable repository use lock from freshness verification through the terminal receipt.
• Review packets freeze the displayed candidate text, provenance, generation, and evidence prefix without combining validation and promotion authority.
• Native Codex receipts bind exact local executable bytes, request, JSONL, output, usage, and terminal state; they do not authenticate the remote provider, server-side model, or hidden reasoning.
• Prospective studies seal every request, acceptance assertion, and workspace snapshot before execution. A single-use study reservation is written before Codex starts; failures consume it, and outcomes replay the complete Agent-message bytes. Reports remain descriptive rather than causal.
• Raw evidence backup is optional, encrypted with age, and completely separate from the readable memory repository.
• AGENTS.md, Skills, and other rule surfaces are never changed without a distinct, target-bound approval.

These guarantees apply to locally available evidence. No client can recover provider-hidden reasoning or bytes that the runtime never exposed.

Install

The project can be built from source with Go 1.25 or newer.

Windows PowerShell:

git clone https://github.com/rrrrrredy/agent-memory-system.git
cd agent-memory-system
New-Item -ItemType Directory -Force .\bin | Out-Null
go build -o .\bin\agentmem.exe .\cmd\agentmem
.\bin\agentmem.exe version

macOS or Linux:

git clone https://github.com/rrrrrredy/agent-memory-system.git
cd agent-memory-system
mkdir -p ./bin
go build -o ./bin/agentmem ./cmd/agentmem
./bin/agentmem version

Tagged releases provide checksum-verified Windows, macOS, and Linux archives; the supported installers target Windows and macOS. See install, upgrade, and uninstall.

Try the complete lifecycle

A privacy-safe fixture under examples/quickstart exercises the same path as real Codex history. One command imports, derives, verifies, and reports the next operator action:

$Evidence = Join-Path ([System.IO.Path]::GetTempPath()) ("agentmem-" + [guid]::NewGuid())
$Onboard = .\bin\agentmem.exe onboard codex --root $Evidence --path .\examples\quickstart | ConvertFrom-Json
.\bin\agentmem.exe status --root $Evidence
.\bin\agentmem.exe review list --root $Evidence --status review_ready --limit 20

evidence="$(mktemp -d)/evidence"
./bin/agentmem onboard codex --root "$evidence" --path ./examples/quickstart
./bin/agentmem status --root "$evidence"
./bin/agentmem review list --root "$evidence" --status review_ready --limit 20

Review and promotion remain separate explicit decisions; onboard never makes either decision. The quickstart provides complete PowerShell and POSIX commands for review, promotion, private Git export, exact retrieval, and switching to an existing Codex sessions directory.

A runtime probe is optional and never gates history import:

.\bin\agentmem.exe compatibility --agent codex

./bin/agentmem compatibility --agent codex

history_import_available remains separate from runtime_status, so a blocked version probe does not hide a working offline importer.

Compatibility and verification

Run a local, non-mutating runtime probe:

agentmem compatibility

The probe checks executable availability and version output. It does not claim that an account is authenticated, that a provider ran a model, or that a native session was captured. See compatibility and evidence levels.

Memory lifecycle

A portable memory is not an editable note. It is an immutable revision chain:

promote -> active revision
active revision -> supersede -> new active revision
active revision -> revoke -> tombstone

Only the current, non-revoked head can be retrieved. Two roots, two children of one parent, an altered historical file, or opposing active memories make verification fail. See promotion and portable memory.

Retrieval

Retrieval is deterministic and offline. It combines exact identity lookup, Unicode word and CJK-bigram matching, scope specificity, evidence strength, and stable tie-breaking. There is no zero-match fallback.

Use the CLI directly or expose the same verified search through a local stdio MCP server:

agentmem recall search --root <evidence> --repo <private-memory> --agent codex --query "release checks"
agentmem serve mcp --root <evidence> --repo <private-memory> --agent codex

Codex, Claude Code, OpenCode, and DeepSeek Harness consume the same portable protocol. Their native hooks, plugins, or Bundles are optional; CLI and MCP remain the stable boundary. The DeepSeek Harness community Bundle is documented under integrations/deepseek-harness.

Operational memory

Create a reusable, exact set of promoted revisions:

agentmem loadout create --repo <private-memory> --name "Release checks" \
  --scope-kind project --scope-value example-project --agent codex \
  --memory <memory-id>
agentmem loadout context --root <evidence> --repo <private-memory> \
  --loadout <loadout-id> --agent codex --scope-project example-project

Build one immutable review surface before promotion:

agentmem review packet --root <evidence> --status review_ready --limit 20
agentmem promote candidate --root <evidence> --candidate <candidate-id> \
  --packet <review-packet-path-or-id> --approver local-user \
  --reason "Approved after reviewing the bound packet."

Run and replay a local Codex process from a versioned request:

agentmem agent run codex --root <evidence> --file <request.json> \
  --codex <codex-executable>
agentmem agent verify --root <evidence>

The local dashboard exposes verification summaries only:

agentmem serve dashboard --root <evidence> --repo <private-memory>

See loadouts, native execution, longitudinal studies, and the dashboard.

Storage boundaries

Do not copy ~/.codex, Agent state databases, session directories, or the local evidence root into the memory repository. SQLite may be used as a rebuildable local index, never as Git-merged canonical data.

What the project does not claim

• It does not capture private chain-of-thought hidden by a provider.
• It does not treat a summary as the missing original reasoning.
• It does not automatically promote model-written claims.
• It does not silently merge semantic conflicts.
• It does not prove that retrieval improves work merely because retrieval ran.
• It does not turn a descriptive longitudinal association into causal or independently provider-certified efficacy.
• It does not modify Agent rules or install hooks without explicit approval.

Repository map

• cmd/agentmem: cross-platform CLI
• adapters: loss-aware Codex, Claude Code, OpenCode, and DeepSeek Harness importers
• internal/ledger: append-only evidence and content-addressed blobs
• internal/episodes, internal/candidates: reconstruction and extraction
• internal/review, internal/promotion: attested decisions and memory lifecycle
• internal/portable, internal/gitsync: portable projection and private Git
• internal/loadout, internal/retrieval, internal/mcpserver: exact loadouts, bounded query, and delivery receipts
• internal/reviewpacket: immutable candidate review surfaces
• internal/agentbridge: replay-verifiable local Codex process evidence
• internal/study: prospective assignment, observation, and descriptive reports
• internal/dashboard: loopback-only read-only operational summary
• internal/codexbench: sealed native Codex baseline/memory diagnostics
• internal/evaluation: frozen corpora, paired trials, metrics, and replay
• internal/backup, internal/diagnostics: encrypted recovery and integrity
• schemas: versioned public JSON contracts
• docs/adr: architectural decisions and threat boundaries

Detailed protocol documentation lives under docs. Start with the product contract, threat model, and verification guide.

Development

go test ./...
go vet ./...
go build ./cmd/agentmem

The CI matrix runs on Ubuntu, Windows, and macOS. Stateful safety packages also run with the Go race detector. The OpenCode runtime smoke test installs its pinned runtime only inside the disposable hosted runner. The DeepSeek Harness Bundle has its own Node 22.19+/24 build, Cordis composition, and package tests.

See CONTRIBUTING.md before changing an adapter, schema, or evidence boundary. Never attach real transcripts or raw evidence to an issue.

License

MIT. See LICENSE.