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ZacharyZhang-NY eb50367921
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Move the canonical host to git.zacharyzhang.com and follow the module path
The GitHub account that hosted this repository is suspended, so the remote
is dead and the vanity import github.com/ZacharyZhang-NY/ely-eye/... no
longer resolves. The Go module path is that import, so it moves with the
host: git.zacharyzhang.com serves a go-import meta tag for the nested
ely-eye-mcp submodule, which go build and go get both need.

The installers read release assets from the host too, so their API and
download URLs move with it. The release workflow's -ldflags symbol path is
the module path, so it moves as well; a build stamped with the new path
prints the stamped version.
2026-10-10 11:26:19 -04:00

103 lines
3.8 KiB
Go

package mcpserver
import (
"context"
"errors"
"git.zacharyzhang.com/ZacharyZhang-NY/ely-eye/ely-eye-mcp/internal/domain"
"github.com/modelcontextprotocol/go-sdk/mcp"
)
type WhoKnowsInput struct {
Query string `json:"query" jsonschema:"what the asker wants to know, in the asker's own words"`
AsHolder string `json:"as_holder,omitempty" jsonschema:"who is asking; decides which memories may be shown"`
Limit int `json:"limit,omitempty" jsonschema:"how many candidates to return, default 8"`
}
type AskInput struct {
Question string `json:"question" jsonschema:"the question to answer from memory"`
AsHolder string `json:"as_holder,omitempty" jsonschema:"who is asking; their own memory is checked first"`
MaxHops int `json:"max_hops,omitempty" jsonschema:"how many holders besides the asker may be asked, default 3"`
IncludeText bool `json:"include_text,omitempty" jsonschema:"show the memory text when the asker may already read it"`
}
// registerDirectoryTools exposes the transactive surface: who knows, and ask-and-get-referred.
func (s *Server) registerDirectoryTools(server *mcp.Server) {
mcp.AddTool(server, &mcp.Tool{
Title: "Who knows",
Name: "who_knows",
Description: "Rank the holders whose memories answer a query, with the evidence and how to reach them. The directory counts memories the asker cannot read; that is the point. no_holder_knows is a result, not a failure.",
}, s.whoKnows)
mcp.AddTool(server, &mcp.Tool{
Title: "Ask and get referred",
Name: "ask",
Description: "Ask the asker's own memory, then the directory. answered means somebody's memory matched; referred means the best holder's memory is private, so the answer is the pointer and contact, never the text.",
}, s.askMemory)
mcp.AddTool(server, &mcp.Tool{
Title: "List holders",
Name: "list_holders",
Description: "List registered holders: the people, agents, and services a referral can walk to.",
}, s.listHolders)
}
type whoKnowsOutput struct {
Report domain.WhoKnowsReport `json:"report" jsonschema:"the ranked candidates and their evidence"`
}
type askOutput struct {
Answer domain.ReferralAnswer `json:"answer" jsonschema:"who answered, who was asked, and what may be shown"`
}
type holdersOutput struct {
Holders []domain.Holder `json:"holders" jsonschema:"the registered holders"`
}
func (s *Server) whoKnows(ctx context.Context, _ *mcp.CallToolRequest, in WhoKnowsInput) (*mcp.CallToolResult, whoKnowsOutput, error) {
if in.Query == "" {
return nil, whoKnowsOutput{}, errors.New("query is required")
}
var report domain.WhoKnowsReport
body := map[string]any{"query": in.Query}
if in.AsHolder != "" {
body["as_holder"] = in.AsHolder
}
if in.Limit > 0 {
body["limit"] = in.Limit
}
if err := s.api.Post(ctx, "/api/who_knows", body, &report); err != nil {
return nil, whoKnowsOutput{}, err
}
return nil, whoKnowsOutput{Report: report}, nil
}
func (s *Server) askMemory(ctx context.Context, _ *mcp.CallToolRequest, in AskInput) (*mcp.CallToolResult, askOutput, error) {
if in.Question == "" {
return nil, askOutput{}, errors.New("question is required")
}
var answer domain.ReferralAnswer
body := map[string]any{"question": in.Question}
if in.AsHolder != "" {
body["as_holder"] = in.AsHolder
}
if in.MaxHops > 0 {
body["max_hops"] = in.MaxHops
}
if in.IncludeText {
body["include_text"] = true
}
if err := s.api.Post(ctx, "/api/ask", body, &answer); err != nil {
return nil, askOutput{}, err
}
return nil, askOutput{Answer: answer}, nil
}
func (s *Server) listHolders(ctx context.Context, _ *mcp.CallToolRequest, _ struct{}) (*mcp.CallToolResult, holdersOutput, error) {
var holders []domain.Holder
if err := s.api.Get(ctx, "/api/holders", &holders); err != nil {
return nil, holdersOutput{}, err
}
return nil, holdersOutput{Holders: holders}, nil
}