Files
ely-eye/ely-eye-mcp
ZacharyZhang-NY 83dfc14daa Let the server decide whose memory a caller may read
A holder is now somebody who can prove it. Schema v11 stores a sha256 of a
per-holder token beside the directory row, so a copied database cannot replay
it and the plaintext is shown exactly once. The operator token mints and
revokes those tokens; a holder token reads that holder's own memories and
nothing else; naming somebody else without the operator token is refused with
both ids in the message.

The visibility rule was leaking before this: browse had none at all, and the
search rules short-circuited to the whole library whenever no holder was
named. The rule is now written out in five copies with one parameter carried
four times, and a test compares the copies so they cannot drift — semgrep
rejects an interpolated constant, so the copies are not a choice.

Eyes carry three states on purpose. NULL means the whole library, which is
what a process that owns the store is entitled to; a holder id means that
holder; the empty string means nobody, which is what a tokenless HTTP caller
is. Making NULL mean nobody instead would have forced every internal caller —
CLI, proofs, the compiler, the bench harnesses — to name eyes, contradicting
the rule that a local process reads as its own trusted principal.

The capability card answers "can this store answer my kind of question" before
anything is sent. It is derived from what the store holds, so it cannot
promise a modality the store lacks, and it carries no memory text, so it is
safe to read before trusting the store. HTTP, CLI and one MCP tool all serve
it without a token.
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Ely-Eye MCP

Ely-Eye MCP exposes a local Context Cartridge memory store as a stdio Model Context Protocol server for coding agents such as Codex and Claude Code.

The server is local-first and read-only against <ely-eye-home>/data/ely_eye.sqlite. It reads Evidence Atoms, cartridge manifests, Memory DNA, proof-suite artifacts, HashHop proofs, and compiled evidence packs. The production database is never modified.

It can be deployed for any .ely_eye store. Identity is anchored on the database file, not on the Ely-Eye repository layout, so the server walks up from the working directory to find .ely_eye/data/ely_eye.sqlite, or takes an explicit --ely-eye-home.

One-command setup

The installer downloads a checksum-verified prebuilt binary for the platform when a tagged release is available, otherwise it builds from source with Go from a repository checkout. Either way it installs the binary into <ely-eye-home>/bin and registers the server with Codex and Claude Code. No Docker.

Windows:

powershell -ExecutionPolicy Bypass -File .\ely-eye-mcp\install.ps1 -Client both

Linux and macOS:

bash ./ely-eye-mcp/install.sh --client both

Force a source build (requires Go 1.25 or newer):

bash ./ely-eye-mcp/install.sh --method source

Codex registration uses codex mcp add. Claude Code project registration writes .mcp.json at the project root; --scope user registers through the Claude CLI instead.

Manual run

From inside a project that owns an .ely_eye store:

go run ./cmd/ely-eye-mcp server

Or point at an explicit store:

go run ./cmd/ely-eye-mcp server --ely-eye-home /path/to/.ely_eye

Tools

ely_eye_status returns atom, source, cartridge, token, and cache-layer counts.

list_cartridges lists local Context Cartridges with manifest JSON and Memory DNA.

get_cartridge reads one cartridge plus artifact metadata, memory capsule index, and asset report.

search_atoms queries the local SQLite FTS index and returns ranked Evidence Atoms.

fetch_atom reads one Evidence Atom by exact id.

compile_context compiles a question into a local evidence pack with the same profile names used by the app (live_demo, extreme_context, library_100m, research_theater).

list_proof_suites lists PRD proof suites under <ely-eye-home>/data/eval_proofs.

list_hashhop_proofs aggregates HashHop and Visual HashHop long-context addressing proofs by kind, hop count, and token budget, with pass counts and example proofs. Proofs are deduplicated by content-derived id.

get_proof_suite reads one PRD proof suite by id, including all checks and a summary of its HashHop proofs.

Resources

ely-eye://project/prd, ely-eye://project/readme, and ely-eye://project/mcp-research expose PRD.md, the project README, and these research notes when those files are present next to the store.

Releases

Pushing a mcp-v* tag runs .github/workflows/mcp-release.yml, which cross-compiles the pure-Go server (CGO disabled) for Linux, macOS, and Windows on amd64 and arm64, then publishes the archives with a SHA256SUMS manifest to a GitHub Release. The installers consume those assets.

Security posture

The server opens SQLite read-only with mode=ro and PRAGMA query_only(1), and uses busy_timeout so reads tolerate concurrent writes by the Ely-Eye app. Tools expose structured outputs and return tool-level errors for invalid inputs so agents self-correct through normal tool calls. Proof ids are validated as single path elements before any filesystem read. The server uses stdio transport for local clients and takes credentials only from the local environment.