Mnemon

LLM-supervised persistent memory for AI agents — graph-based recall, cross-session knowledge, single binary. Works with DeepSeek Harness, Claude Code, OpenClaw, and any agent runtime.

Agent Skills Go Listed Apache-2.0

Is Mnemon safe? Promising trust profile, but some evidence still deserves review.

OSSF Scorecard 6.0 / 10
Provenance None
Signed commits 33%
Last push 4d ago
Compare Mnemon
Suggest a correction

In detail: Mnemon scores 58.6/100 (Grade C), ranked #122 of 371 tracked open-source AI agent projects, on evidence coverage C (2 of 5 independent signal types). The public evidence: no package-provenance attestation found; OSSF Scorecard rates its supply-chain practices 6.0/10; 33% of recent commits are signed; last pushed 2026-10-11. Every point is earned from checkable signals — never paid placement. How scoring works →

How Mnemon could raise its score

Each line changes one public signal and recomputes with the live scoring function. The gains don't add up exactly, because the score is capped near the top.

Chain of custody

Scanners check what the code says. This traces who ships Mnemon and whether that has changed: from the source repository, through how changes are reviewed and released, to the code you run. These are the checks for OWASP ASI04 Agentic Supply Chain Vulnerabilities and, for skills, AST02 Supply Chain Compromise.

  1. Source Partly signed

    github.com/mnemon-dev/mnemon, Apache-2.0, last pushed 2026-10-11. 33% of the last 100 commits carry a verified signature; the rest can't be tied to a verified identity.

  2. Review and release Mixed

    OpenSSF Scorecard rates the repository's practices 6.0/10 (scanned Oct 13, 2026). The checks that decide who can get a change released:

    • Code Review2
    • Branch Protection0
    • Signed Releases0
    • Dangerous Workflow10
    • Token Permissions10
    • Pinned Dependencies0
    All 18 Scorecard checks
    Binary-Artifacts 10
    Branch-Protection 0
    CI-Tests 10
    CII-Best-Practices 0
    Code-Review 2
    Contributors 10
    Dangerous-Workflow 10
    Dependency-Update-Tool 0
    Fuzzing 10
    License 10
    Maintained 10
    Packaging 10
    Pinned-Dependencies 0
    SAST 0
    Security-Policy 10
    Signed-Releases 0
    Token-Permissions 10
    Vulnerabilities 9
  3. Published packages None

    No registry package. Mnemon is used from its repository, so what you run is whatever you check out: pin a release tag or commit.

Changes to this chain

  • 2026-08-28 OSSF Scorecard: 5.3/10

Evidence behind this score

Coverage C: 2 of 5 independent evidence types found.

  • GitHub repository data
  • Package downloads (missing)
  • Supply-chain checks
  • Public actions (missing)
  • Community mentions (missing)

Verify this score yourself

Every build re-issues Mnemon’s score as an Ed25519-signed credential, valid for 7 days. You can check it offline against HVTracker’s published key; if anyone changes a number after signing, verification fails.

What this score doesn’t check

It covers who ships the code, not what the code does. It doesn’t read the skill’s instructions for injected instructions, watch runtime behaviour, or find bugs nobody has disclosed yet. For that, run a content scanner before you install it, such as Cisco Skill Scanner.

How Mnemon compares in Agent Skills

  1. #120 Aegis 58.8 +0.2
  2. #121 Token Optimizer 58.7 +0.1
  3. #122 Mnemon 58.6 this agent
  4. #123 Sepia 58.5 −0.1
  5. #124 Builderio Skills 58.5 −0.1

Bars show each HVTrust score; the tick marks Mnemon’s 58.6.

Where the 58.6 comes from

HVTrust dimensions vs the Agent Skills average

58.6 / 100 · 100.0% confidence

Mnemon Agent Skills average (371 agents)

Safety / Integrity50% OSSF Scorecard · 30% provenance · 20% signed commits
9.2 / 25
1.2 above avg 8.0
Identity / Provenance60% listing status · 40% build provenance
10.8 / 18
0.6 below avg 11.4
Transparency50% declared license · 50% OSSF Scorecard
13.6 / 17
1.5 above avg 12.1
Maintenance60% last-push freshness · 40% commit activity
17.6 / 20
3.5 above avg 14.1
AdoptionLog-scaled stars · package downloads
6.7 / 20
2.3 below avg 9.0

Quick Trust Read

What Would Improve It
Publish package provenance or release attestations for stronger supply-chain evidence.
Recent Changes
2026-10-14
Rank Moved
Rank dropped 12 spots (#108 → #120)
2026-09-25
Grade Changed
Trust grade D → C
2026-09-25
Rank Moved
Rank rose 195 spots (#296 → #101)
Maintainer Checklist
Raise Scorecard signals Current OSSF Scorecard is 6.0/10. Tighten the weakest checks to improve public safety evidence.
Publish provenance Add package provenance or release attestations so users can verify where shipped artifacts came from.
Increase signed commits Raise the share of verified-signed commits to make maintainer identity and release history easier to trust.
68.4
Activity sub-score · out of 100
#122

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption. Grade C reflects the trust score band: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Evidence coverage C is separate — it grades how many independent signal types back the score (2 of 5), so a high score on thin evidence stays visible. Full methodology →

Signals refreshed 2026-10-15 04:08 UTC · Repo last pushed 4 days ago

Rank Trend

2026-09-29 2026-10-15

Activity & Reach

Stars
630
Forks
76
Last Push
2026-10-11
4 days ago
Commits (4 wk)
28
Downloads (7d)
—
HN mentions (30d)
—
Open Issues
8
Rank Change
▼2
was #120

Analysis

Activity Inputs

68.4 / 100
StarsRepository reach
16.8 / 30
FreshnessLast push recency
24.4 / 25
ActivityRecent commits
18.2 / 25
CommunityFork signal
8.8 / 20

Common questions about Mnemon

Mnemon has a mixed signal profile. Some trust indicators are present, others are missing. Whether it is safe for your use case depends on which gaps matter to you — review the breakdown below before adopting in production.
Does Mnemon publish package provenance?
No published build provenance is currently detected for Mnemon. This is common for open-source projects but means consumers cannot independently verify that the package on the registry matches the GitHub source.
Does Mnemon have an OpenSSF Scorecard?
Mnemon has an OpenSSF Scorecard score of 6.0/10. The Scorecard checks for branch protection, signed releases, dependency updates, fuzzing, code review, and other supply-chain hygiene items. See the full check breakdown on this page.
Is Mnemon actively maintained?
Actively maintained. The repository was pushed to within the last 4 day(s).
What license does Mnemon use?
Mnemon ships under Apache-2.0. A declared, OSI-approved license is one of the transparency signals HVTrust scores.
Are Mnemon's commits signed?
33% of the last 100 commits to Mnemon are verified-signed (GPG, SSH, S/MIME, or GitHub's signing flow). Signed commits help confirm that code was authored by who the commit claims.

Not a safety endorsement. HVTracker describes what public signals show, not whether a project is safe for your use case. Run your own security review before adopting in production.

AI agent surface

MCP, providers, tool surface
Scored in HVTrust

These runtime-trust fields — detected from public repo docs and manifests — contribute a bounded adjustment to this project's HVTrust score alongside supply-chain evidence. The exact values each field can add or subtract are documented in the methodology → Compare this surface across every listed agent in the capability matrix →

MCP Server Support
medium confidence
Implemented
Mnemon appears to expose MCP server capabilities.
Detailed evidence is not shown in the public view.
External Service Dependencies
low confidence
None detected
No clear third-party provider dependency detected.
Credential signal: API keys or service config markers documented.
Tool / Plugin Surface
high confidence
Declared
Declared plugin/integration surface detected.
Detailed evidence is not shown in the public view.
Package Provenance Drift
N/A
No package source configured
Detailed evidence is not shown in the public view.
  • MCP signal live
  • External deps live
  • Tool / plugin surface live
  • Package provenance drift live
How this surface has changed

Detected changes to Mnemon's runtime surface and supply-chain posture, from daily public-signal snapshots. A change here means our detectors see something different — a genuinely changed capability, or better evidence of an existing one.

2026-09-23
Tool Surface Changed
Detected tool/plugin surface changed: none → declared
2026-09-23
Mcp Status Changed
Detected MCP server support changed: none → implemented

Maintain Mnemon?

For maintainers

HVTrust scores Mnemon from public signals only — we never contact maintainers first. If a signal is wrong, stale, or missing (provenance you publish, a Scorecard you run, signed releases), tell us and we'll review it. Corrections are public and tracked on GitHub.

Reputation Timeline

Signal history
Rank 13HVTrust 3Listed 2Scorecard 1Delisted 1MCP 1Surface 1Grade 1
2026-10-14
Rank Moved
Rank dropped 12 spots (#108 → #120)
2026-09-25
Grade Changed
Trust grade D → C
2026-09-25
Rank Moved
Rank rose 195 spots (#296 → #101)
2026-09-25
HVTrust Changed
HVTrust up 19.8pts (40.4 → 60.2)
2026-09-23
Tool Surface Changed
Detected tool/plugin surface changed: none → declared
2026-09-23
Mcp Status Changed
Detected MCP server support changed: none → implemented
2026-09-23
Rank Moved
Rank dropped 67 spots (#232 → #299)
2026-09-23
HVTrust Changed
HVTrust up 7.4pts (32.6 → 40.0)
2026-09-22
Newly Listed
First tracked at rank #232
2026-09-21
Removed From Active Tracking
Removed from active tracking
2026-09-11
Rank Moved
Rank dropped 10 spots (#283 → #293)
2026-09-10
Rank Moved
Rank dropped 13 spots (#270 → #283)
2026-09-05
Rank Moved
Rank dropped 11 spots (#243 → #254)
2026-09-03
Rank Moved
Rank dropped 10 spots (#227 → #237)
2026-09-02
Rank Moved
Rank dropped 14 spots (#213 → #227)
2026-09-01
Rank Moved
Rank dropped 14 spots (#199 → #213)
2026-08-31
Rank Moved
Rank dropped 16 spots (#183 → #199)
2026-08-30
Rank Moved
Rank dropped 31 spots (#152 → #183)
2026-08-29
Rank Moved
Rank dropped 37 spots (#115 → #152)
2026-08-28
Scorecard Added
OSSF Scorecard: 5.3/10
2026-08-28
Rank Moved
Rank rose 145 spots (#260 → #115)
2026-08-28
HVTrust Changed
HVTrust up 19.8pts (19.3 → 39.1)
2026-08-26
Newly Listed
First tracked at rank #256

Embed Badge Badge guide for maintainers →

For maintainers
HVTrust 58.6 Grade C
Markdown:
[![HVTrust](https://hvtracker.net/badge/mnemon.svg)](https://hvtracker.net/agents/mnemon)
HTML:
<a href="https://hvtracker.net/agents/mnemon"><img src="https://hvtracker.net/badge/mnemon.svg" alt="HVTrust"></a>

Other agents in Agent Skills

Data sources
GitHub REST API (repo, commits, stars, forks, license) · OpenSSF Scorecard CLI
Each agent's signals refresh once daily across 6 staggered batches. Methodology v4.4 · Raw JSON