Skills/PyPI/mseep-heimdall-mcp

mseep-heimdall-mcp@0.3.6

VERIFIED· not started

Publisher claims: "Persistent, project-aware, long-term memory for AI coding assistants" Observed in sandbox: no network, touches nothing outside the project, writes no memory.

Registry PyPI (MCP server)Publisher mseep-support · publishing for 578 daysInstalls 25Last detonated 2d ago
$claude mcp add mseep-heimdall-mcp -- uvx mseep-heimdall-mcp
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Coverage

Not started: dependency install failed; the server itself was not observed.
Tested
the dependency install step · every file read, file written and host contacted by what ran
Not tested
server startup · the tool list · tool behavior

What this means for the label: Verified here covers what ran. The server's tools were not exercised with a real credential, so nothing about their behavior is asserted; the credential summary below says what to do with that.

Before you give it your token

It will ask for
MAX_TOKENS_PER_CHUNKQDRANT_API_KEYConfiguration, not credentials: ACTIVATION_THRESHOLD, ACTIVITY_ACCESS_WEIGHT, ACTIVITY_COMMIT_WEIGHT, ACTIVITY_WINDOW_DAYS, ASSOCIATIVE_WEIGHT, CLEANUP_INTERVAL_HOURS, CODE_BLOCK_LINES, CONSOLIDATION_THRESHOLD, CONTAINER, CONTEXTUAL_DIMENSIONS, CONTEXTUAL_WEIGHT, DB_BACKUP_INTERVAL, DB_ENABLE_WAL, EMBEDDING_BATCH_SIZE, EMBEDDING_DEVICE, EMBEDDING_DIMENSION, EMOTIONAL_DIMENSIONS, EMOTIONAL_WEIGHT, EXPLICIT_DELTA, HIERARCHICAL_WEIGHT, HIGH_ACTIVITY_MULTIPLIER, HIGH_ACTIVITY_THRESHOLD, LEXICAL_BETA, LOG_FILE, LOG_FORMAT, LOG_RETENTION, LOG_ROTATE_SIZE, LOW_ACTIVITY_MULTIPLIER, LOW_ACTIVITY_THRESHOLD, MAX_ACCESSES_PER_DAY, MAX_ACTIVATIONS, MAX_COMMITS_PER_DAY, MAX_MEMORY_USAGE_MB, MODEL_CACHE_DIR, MODIFICATION_DATE_WEIGHT, MODIFICATION_RECENCY_DECAY_DAYS, MONITORING_BATCH_SIZE, MONITORING_ENABLED
Where it talks to
no vendor host named in the codeAlso google.com, huggingface.co — not the publisher's domain; check what for before connecting.
What the honeypot saw
no credential files read · no network
What we could not test
server startup · the tool list · tool behavior

Connect it with a scoped credential, under the guard, and read the third-party hosts first. The code names google.com, huggingface.co as well as its own vendor. The guard injects MAX_TOKENS_PER_CHUNK, QDRANT_API_KEY only into requests to the host you bind (and its subdomains) and refuses the rest.

$vet-skills run --net declared -- uvx mseep-heimdall-mcp

Never paste a credential into a chat, a ticket or a report, including ours. How the guard holds it.

Is [email protected] safe to install?

KillerSkills ran it in the KillerSkills honeypot sandbox (2 scenarios; not started: dependency install failed; the server itself was not observed) on 2026-11-12 and scored it 83/100 (Verified). In what ran, nothing we could detect went wrong: no undeclared network egress, no credential reads, no persistent instruction writes. What it does with a real credential was not observed; the static findings and the publisher carry the rest of the score. Summary: no network, touches nothing outside the project, writes no memory.

Behavior trace

Honeypot run · 0 s · 2 scenarios · 0 deviations
t+CategoryObserved action
0.0sprocessno install scripts in bundle
0.1sprocessdependency install exit 1 ·
0.1sclaimednot started: dependency install failed (exit 1); the server itself was not observed
0.1sprocessscript backend runs setup only
0.1sprocessno install scripts to re-run

Static findings

HIGH
Access to sensitive file pathscognitive_memory/factory.py:277 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files# For now, only support .env filesFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathscognitive_memory/main.py:120 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system fileswith those settings. Supports .env files with plans for YAML/TOML.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathscognitive_memory/factory.py:271 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesif config_path.endswith(".env"):Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathscognitive_memory/core/config.py:798 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesdefault_env = Path(".env")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathscognitive_memory/core/config.py:1011 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesGet system configuration, loading from environment variables and .env file.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathscognitive_memory/core/config.py:1014 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesenv_file: Optional path to .env file. If None, looks for .env in current directory.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathscognitive_memory/factory.py:270 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files# Load environment variables from config file if it's .envFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathscognitive_memory/core/config.py:794 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system files# Load .env file if specified or if default existsFix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathscognitive_memory/core/config.py:5 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesvariables and .env files as specified in the technical architecture.Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cognitive_system/service_manager.py:425 · Python subprocess execution detectedsubprocess.run(cmd, check=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cognitive_system/service_manager.py:356 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cli_commands/mcp_commands.py:254 · Python subprocess execution detectedsubprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cognitive_system/service_manager.py:417 · Python subprocess execution detectedsubprocess.Popen(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
MCP server using network transport (SSE/HTTP)heimdall/mcp_server.py:698 · MCP server using network transport (SSE/HTTP) — data sent over networkawait mcp_server.run_http(host=args.host, port=args.port)Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04
MEDIUM
Python subprocess execution detectedlightweight_monitor.py:956 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cli_commands/mcp_commands.py:269 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cli_commands/project_commands.py:302 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
Access to sensitive file pathsheimdall/cognitive_system/health_checker.py:1002 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesrecommendations.append("Check .env file and configuration settings")Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cli_commands/project_commands.py:292 · Python subprocess execution detectedpip_install = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
Access to sensitive file pathsheimdall/cli_commands/cognitive_commands.py:245 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesNone, help="Path to .env configuration file to override default settings"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cli_commands/mcp_commands.py:109 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cognitive_system/service_manager.py:149 · Python subprocess execution detectedresult = subprocess.run(cmd, capture_output=True, text=True)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
Access to sensitive file pathsheimdall/cli_commands/cognitive_commands.py:74 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesNone, help="Path to .env configuration file to override default settings"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cli_commands/mcp_commands.py:146 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cli_commands/project_commands.py:1361 · Python subprocess execution detectedpip_install = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
Access to sensitive file pathsheimdall/cli_commands/cognitive_commands.py:160 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesNone, help="Path to .env configuration file to override default settings"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cognitive_system/monitoring_service.py:516 · Python subprocess execution detectedprocess = subprocess.Popen(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cli_commands/mcp_commands.py:303 · Python subprocess execution detectedresult = subprocess.run(cmd, capture_output=True, text=True, timeout=30)Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cli_commands/project_commands.py:281 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
MEDIUM
Python subprocess execution detectedheimdall/cli_commands/project_commands.py:1113 · Python subprocess execution detectedresult = subprocess.run(Fix: Build commands from fixed arguments, never from interpolated strings; prefer an API client over shelling out.
AST05
HIGH
Access to sensitive file pathsheimdall/cli_commands/cognitive_commands.py:315 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesNone, help="Path to .env configuration file to override default settings"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
HIGH
Access to sensitive file pathsheimdall/cli_commands/cognitive_commands.py:28 · Access to sensitive file paths — SSH keys, AWS credentials, env files, or system filesNone, help="Path to .env configuration file to override default settings"Fix: Stop enumerating or reading credential locations; take secrets from a declared environment variable the user sets on purpose.
AST05
MEDIUM
MCP server using network transport (SSE/HTTP)heimdall/mcp_server.py:724 · MCP server using network transport (SSE/HTTP) — data sent over networkasyncio.run(mcp_server.run_http(host=host, port=port))Fix: Namespace tool names and keep tool descriptions literal; no instructions to the agent inside them.
AST04

Cost to the agent

Instructions loaded
≈56 tok
1 file · 80 in bundle
Tool list per prompt
≈0 tok
0 tools · 0 per tool
Handshake
no reply
launch to tools/list, stdio
Undocumented tools
0
description under 20 chars · avg 0

Tokens estimated at four characters each. The tool list is re-read by the agent on every turn, so it is the number to compare between servers that do the same job: ranked across the index.

Known vulnerabilities

No advisories in OSV for mseep-heimdall-mcp@0.3.6 as of 2d ago. This is the package itself, not its dependencies.