Function resolve_project_tail

src/mcp/mcp.c:1443–1489

#1025: agents naturally pass the repo FOLDER name ("codebase-memory-mcp"), * but indexed project names derive from the full path * (E:\project\graph\x -> "E-project-graph-x"), so the exact lookup fails * while list_projects clearly shows the project. When no .db exists, * scan cache-dir FILENAMES for a segment-aligned tail match ("- .db"): * exactly one match adopts the full

 * the existing not-found error (which lists all candidates) fires. Filename-
 * level only — internal-name drift stays #704's fallback in resolve_store. */
static char *resolve_project_tail(char *project) {
    if (!project || !cbm_validate_project_name(project)) {
        return project;
    }
    char dir[CBM_SZ_1K];
    cache_dir(dir, sizeof(dir));
    char exact[CBM_SZ_2K];
    snprintf(exact, sizeof(exact), "%s/%s.db", dir, project);
    if (cbm_file_exists(exact)) {
        return project; /* exact name — untouched fast path */
    }
    size_t plen = strlen(project);
    char match[CBM_SZ_1K] = "";
    int matches = 0;
    cbm_dir_t *d = cbm_opendir(dir);
    if (!d) {
        return project;
    }
    cbm_dirent_t *entry;
    while ((entry = cbm_readdir(d)) != NULL) {
        const char *n = entry->name;
        size_t len = strlen(n);
        if (!is_project_db_file(n, len)) {
            continue;
        }
        size_t stem_len = len - MCP_DB_EXT; /* strip ".db" */
        if (stem_len <= plen + 1 || stem_len >= sizeof(match)) {
            continue;
        }
        if (n[stem_len - plen - 1] != '-' || strncmp(n + stem_len - plen, project, plen) != 0) {
            continue;
        }
        matches++;
        if (matches > 1) {
            break; /* ambiguous — keep the original name */
        }
        memcpy(match, n, stem_len);
        match[stem_len] = '\0';
    }
    cbm_closedir(d);
    if (matches == 1) {
        cbm_log_info("mcp.project_tail_resolved", "passed", project, "resolved", match);
        free(project);
        return heap_strdup(match);
    }
    return project;
}

/* Resolve the project argument, accepting the canonical "project" key plus the
 * aliases a caller naturally reaches for (#640): list_projects surfaces the